diff --git a/.gitignore b/.gitignore
index 8cb9e36..5e8569d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ coverage.json
 #Hardhat files
 cache
 artifacts/build-info
+artifacts/@openzeppelin
\ No newline at end of file
diff --git a/artifacts/contracts/mockToken.sol/MockToken.dbg.json b/artifacts/contracts/mockToken.sol/MockToken.dbg.json
new file mode 100644
index 0000000..e04d0c5
--- /dev/null
+++ b/artifacts/contracts/mockToken.sol/MockToken.dbg.json
@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../build-info/5f0db55f399477fd77a196dfab69a373.json"
+}
diff --git a/artifacts/contracts/mockToken.sol/MockToken.json b/artifacts/contracts/mockToken.sol/MockToken.json
new file mode 100644
index 0000000..7b9e0fa
--- /dev/null
+++ b/artifacts/contracts/mockToken.sol/MockToken.json
@@ -0,0 +1,292 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "MockToken",
+  "sourceName": "contracts/mockToken.sol",
+  "abi": [
+    {
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "supply",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "account",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "decimals",
+      "outputs": [
+        {
+          "internalType": "uint8",
+          "name": "",
+          "type": "uint8"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "subtractedValue",
+          "type": "uint256"
+        }
+      ],
+      "name": "decreaseAllowance",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "addedValue",
+          "type": "uint256"
+        }
+      ],
+      "name": "increaseAllowance",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "name",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "symbol",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "bytecode": 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+  "deployedBytecode": 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+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}
diff --git a/artifacts/contracts/p2pix.sol/P2PIX.dbg.json b/artifacts/contracts/p2pix.sol/P2PIX.dbg.json
index 5c5d512..51c5d14 100644
--- a/artifacts/contracts/p2pix.sol/P2PIX.dbg.json
+++ b/artifacts/contracts/p2pix.sol/P2PIX.dbg.json
@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../build-info/e53d155f4d4e8ba3d5f49011e7166818.json"
+  "buildInfo": "../../build-info/5ce31c4ec8418c4fef71a52ed732efd0.json"
 }
diff --git a/artifacts/contracts/p2pix.sol/P2PIX.json b/artifacts/contracts/p2pix.sol/P2PIX.json
index 81dcb55..ef5cf9d 100644
--- a/artifacts/contracts/p2pix.sol/P2PIX.json
+++ b/artifacts/contracts/p2pix.sol/P2PIX.json
@@ -40,6 +40,12 @@
           "name": "token",
           "type": "address"
         },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "price",
+          "type": "uint256"
+        },
         {
           "indexed": false,
           "internalType": "uint256",
@@ -69,6 +75,25 @@
       "name": "DepositClosed",
       "type": "event"
     },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "bytes32",
+          "name": "depositID",
+          "type": "bytes32"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "price",
+          "type": "uint256"
+        }
+      ],
+      "name": "DepositPriceChanged",
+      "type": "event"
+    },
     {
       "anonymous": false,
       "inputs": [
@@ -176,6 +201,24 @@
       "stateMutability": "nonpayable",
       "type": "function"
     },
+    {
+      "inputs": [
+        {
+          "internalType": "bytes32",
+          "name": "depositID",
+          "type": "bytes32"
+        },
+        {
+          "internalType": "uint256",
+          "name": "price",
+          "type": "uint256"
+        }
+      ],
+      "name": "changeDepositPrice",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
     {
       "inputs": [],
       "name": "defaultLockBlocks",
@@ -201,6 +244,11 @@
           "name": "amount",
           "type": "uint256"
         },
+        {
+          "internalType": "uint256",
+          "name": "price",
+          "type": "uint256"
+        },
         {
           "internalType": "string",
           "name": "pixTarget",
@@ -333,8 +381,8 @@
       "type": "function"
     }
   ],
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   "linkReferences": {},
   "deployedLinkReferences": {}
 }
diff --git a/contracts/mockToken.sol b/contracts/mockToken.sol
new file mode 100644
index 0000000..f67317f
--- /dev/null
+++ b/contracts/mockToken.sol
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.9;
+
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+
+contract MockToken is ERC20 {
+
+    constructor(uint256 supply) ERC20("MockBRL", "MBRL") {
+        _mint(msg.sender, supply);
+    }
+}
\ No newline at end of file
diff --git a/contracts/p2pix.sol b/contracts/p2pix.sol
index 42342a4..cc27a0f 100644
--- a/contracts/p2pix.sol
+++ b/contracts/p2pix.sol
@@ -1,11 +1,14 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.9;
 
+import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+
 contract P2PIX {
 
-    event DepositAdded(address indexed seller, bytes32 depositID, address token, uint256 amount);
+    event DepositAdded(address indexed seller, bytes32 depositID, address token, uint256 price, uint256 amount);
     event DepositClosed(address indexed seller, bytes32 depositID);
     event DepositWithdrawn(address indexed seller, bytes32 depositID, uint256 amount);
+    event DepositPriceChanged(bytes32 indexed depositID, uint256 price);
     event LockAdded(address indexed buyer, bytes32 indexed lockID, bytes32 depositID, uint256 amount);
     event LockReleased(address indexed buyer, bytes32 lockId);
     event LockReturned(address indexed buyer, bytes32 lockId);
@@ -14,6 +17,7 @@ contract P2PIX {
         address seller;
         address token;          // ERC20 stable token address
         uint256 remaining;      // Remaining tokens available
+        uint256 price;          // Price in R$ per token
         bool valid;             // Could be invalidated by the seller
         string pixTarget;       // The PIX account for the seller receive transactions
     }
@@ -23,7 +27,8 @@ contract P2PIX {
         address targetAddress;          // Where goes the tokens when validated
         address relayerAddress;         // Relayer address that facilitated this transaction
         uint256 relayerPremium;         // Amount to be paid for relayer
-        uint256 amount;                 // Amount to be transfered to buyer
+        uint256 amount;                 // Amount to be tranfered via PIX
+        uint256 locked;                 // Amount locked in tokens from deposit
         uint256 expirationBlock;        // If not paid at this block will be expired
     }
 
@@ -55,15 +60,16 @@ contract P2PIX {
     function deposit(
         address token,
         uint256 amount,
+        uint256 price,
         string calldata pixTarget
     ) public returns (bytes32 depositID){
         depositID = keccak256(abi.encodePacked(pixTarget, amount));
         require(!mapDeposits[depositID].valid, 'P2PIX: Deposit already exist and it is still valid');
-        // TODO Prevent seller to use same depositID
-        // TODO Transfer tokens to this address
-        Deposit memory d = Deposit(msg.sender, token, amount, true, pixTarget);
+        IERC20 t = IERC20(token);
+        t.transferFrom(msg.sender, address(this), amount);
+        Deposit memory d = Deposit(msg.sender, token, amount, price, true, pixTarget);
         mapDeposits[depositID] = d;
-        emit DepositAdded(msg.sender, depositID, token, amount);
+        emit DepositAdded(msg.sender, depositID, token, price, amount);
     }
 
     // Vendedor pode invalidar da ordem de venda impedindo novos locks na mesma (isso não afeta nenhum lock que esteja ativo).
@@ -89,7 +95,7 @@ contract P2PIX {
         unlockExpired(expiredLocks);
         Deposit storage d = mapDeposits[depositID];
         require(d.valid, "P2PIX: Deposit not valid anymore");
-        require(d.remaining > amount, "P2PIX: Not enough remaining");
+        require(d.remaining > amount/d.price, "P2PIX: Not enough remaining");
         lockID = keccak256(abi.encodePacked(depositID, amount, targetAddress));
         require(
             mapLocks[lockID].expirationBlock < block.number,
@@ -101,6 +107,7 @@ contract P2PIX {
             relayerAddress,
             relayerPremium,
             amount,
+            amount/d.price,
             block.number+defaultLockBlocks
         );
         mapLocks[lockID] = l;
@@ -120,6 +127,7 @@ contract P2PIX {
         // TODO Check if lockID exists and is enabled
         // TODO **Prevenir que um Pix não relacionado ao APP seja usado pois tem o mesmo destino
         Lock storage l = mapLocks[lockID];
+        Deposit storage d = mapDeposits[l.depositID];
         bytes32 message = keccak256(abi.encodePacked(
             mapDeposits[l.depositID].pixTarget,
             l.amount,
@@ -128,13 +136,21 @@ contract P2PIX {
         require(!usedTransactions[message], "Transaction already used to unlock payment.");
         address signer = ecrecover(message, v, r, s);
         require(validBacenSigners[signer], "Signer is not a valid signer.");
-        // TODO Transfer token to l.target
-        // TODO Transfer relayer fees to relayer
+        IERC20 t = IERC20(d.token);
+        t.transfer(l.targetAddress, l.locked-l.relayerPremium);
+        if (l.relayerPremium > 0) t.transfer(l.relayerAddress, l.relayerPremium);
         l.amount = 0;
         usedTransactions[message] = true;
         emit LockReleased(l.targetAddress, lockID);
     }
 
+    // Change price for deposit amount
+    function changeDepositPrice(bytes32 depositID, uint256 price) public {
+        Deposit storage d = mapDeposits[depositID];
+        d.price = price;
+        emit DepositPriceChanged(depositID, price);
+    }
+
     // Unlock expired locks
     function unlockExpired(bytes32[] calldata lockIDs) internal {
         uint256 locksSize = lockIDs.length;
@@ -153,11 +169,13 @@ contract P2PIX {
         bytes32[] calldata expiredLocks
     ) public onlySeller(depositID) {
         unlockExpired(expiredLocks);
-        if (mapDeposits[depositID].valid) cancelDeposit(depositID);
-        // TODO Transfer remaining tokens back to the seller
+        Deposit storage d = mapDeposits[depositID];
+        if (d.valid) cancelDeposit(depositID);
+        IERC20 token = IERC20(d.token);
+        token.transfer(d.seller, d.remaining);
         // Withdraw remaining tokens from mapDeposit[depositID]
-        uint256 amount = mapDeposits[depositID].remaining;
-        mapDeposits[depositID].remaining = 0;
+        uint256 amount = d.remaining;
+        d.remaining = 0;
         emit DepositWithdrawn(msg.sender, depositID, amount);
     }
 
diff --git a/deploys/localhost.json b/deploys/localhost.json
new file mode 100644
index 0000000..cf0e5d8
--- /dev/null
+++ b/deploys/localhost.json
@@ -0,0 +1,8 @@
+{
+  "signers": [
+    "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
+    "0x70997970C51812dc3A010C7d01b50e0d17dc79C8"
+  ],
+  "p2pix": "0x5FbDB2315678afecb367f032d93F642f64180aa3",
+  "token": "0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512"
+}
\ No newline at end of file
diff --git a/hardhat.config.js b/hardhat.config.js
index cd469dd..acb3ac3 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -3,4 +3,10 @@ require("@nomiclabs/hardhat-waffle");
 /** @type import('hardhat/config').HardhatUserConfig */
 module.exports = {
   solidity: "0.8.17",
+  networks: {
+    hardhat: {
+      blockGasLimit: 30000000,
+      //hardfork: 'london'
+    }
+  }
 };
diff --git a/package-lock.json b/package-lock.json
index b2884f2..282502e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,9 @@
       "name": "p2pix-smart-contracts",
       "version": "1.0.0",
       "license": "MIT",
+      "dependencies": {
+        "@openzeppelin/contracts": "^4.7.3"
+      },
       "devDependencies": {
         "@nomiclabs/hardhat-waffle": "^2.0.3",
         "chai": "^4.3.6",
@@ -1756,6 +1759,11 @@
         "hardhat": "^2.0.0"
       }
     },
+    "node_modules/@openzeppelin/contracts": {
+      "version": "4.7.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.3.tgz",
+      "integrity": "sha512-dGRS0agJzu8ybo44pCIf3xBaPQN/65AIXNgK8+4gzKd5kbvlqyxryUYVLJv7fK98Seyd2hDZzVEHSWAh0Bt1Yw=="
+    },
     "node_modules/@resolver-engine/core": {
       "version": "0.3.3",
       "resolved": "https://registry.npmjs.org/@resolver-engine/core/-/core-0.3.3.tgz",
@@ -17914,6 +17922,11 @@
         "@types/web3": "1.0.19"
       }
     },
+    "@openzeppelin/contracts": {
+      "version": "4.7.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.3.tgz",
+      "integrity": "sha512-dGRS0agJzu8ybo44pCIf3xBaPQN/65AIXNgK8+4gzKd5kbvlqyxryUYVLJv7fK98Seyd2hDZzVEHSWAh0Bt1Yw=="
+    },
     "@resolver-engine/core": {
       "version": "0.3.3",
       "resolved": "https://registry.npmjs.org/@resolver-engine/core/-/core-0.3.3.tgz",
diff --git a/package.json b/package.json
index 82b3bc0..44dfe47 100644
--- a/package.json
+++ b/package.json
@@ -20,5 +20,8 @@
     "@nomiclabs/hardhat-waffle": "^2.0.3",
     "chai": "^4.3.6",
     "hardhat": "^2.12.0"
+  },
+  "dependencies": {
+    "@openzeppelin/contracts": "^4.7.3"
   }
 }
diff --git a/scripts/1-deploy-p2pix.js b/scripts/1-deploy-p2pix.js
new file mode 100644
index 0000000..3f2cef2
--- /dev/null
+++ b/scripts/1-deploy-p2pix.js
@@ -0,0 +1,31 @@
+const fs = require('fs');
+const { network } = require("hardhat");
+
+async function main() {
+
+    let deploysJson = {}
+
+    try {
+        const data = fs.readFileSync(`./deploys/${network.name}.json`, {encoding:"utf-8"});
+        deploysJson = JSON.parse(data);
+    } catch (err) {
+        console.log('Error loading Master address: ', err);
+        process.exit(1);
+    }
+
+    const P2PIX = await ethers.getContractFactory("P2PIX");
+    const p2pix = await P2PIX.deploy(2, deploysJson.signers);
+    await p2pix.deployed();
+
+    deploysJson.p2pix = p2pix.address
+    console.log("🚀 P2PIX Deployed:", p2pix.address);
+
+    fs.writeFileSync(`./deploys/${network.name}.json`, JSON.stringify(deploysJson, undefined, 2));
+}
+  
+main()
+.then(() => process.exit(0))
+.catch((error) => {
+    console.error(error);
+    process.exit(1);
+});
\ No newline at end of file
diff --git a/scripts/2-deploy-mockToken.js b/scripts/2-deploy-mockToken.js
new file mode 100644
index 0000000..5c12043
--- /dev/null
+++ b/scripts/2-deploy-mockToken.js
@@ -0,0 +1,31 @@
+const fs = require('fs');
+const { network } = require("hardhat");
+
+async function main() {
+
+    let deploysJson = {}
+
+    try {
+        const data = fs.readFileSync(`./deploys/${network.name}.json`, {encoding:"utf-8"});
+        deploysJson = JSON.parse(data);
+    } catch (err) {
+        console.log('Error loading Master address: ', err);
+        process.exit(1);
+    }
+
+    const ERC20Factory = await ethers.getContractFactory("MockToken");
+    const erc20 = await ERC20Factory.deploy(ethers.utils.parseEther('20000000', 'wei')); 
+    await erc20.deployed();
+
+    deploysJson.token = erc20.address
+    console.log("🚀 Mock Token Deployed:", erc20.address);
+
+    fs.writeFileSync(`./deploys/${network.name}.json`, JSON.stringify(deploysJson, undefined, 2));
+}
+  
+main()
+.then(() => process.exit(0))
+.catch((error) => {
+    console.error(error);
+    process.exit(1);
+});
\ No newline at end of file
diff --git a/test/1-deposit.test.js b/test/1-deposit.test.js
index 2a30458..7a9e877 100644
--- a/test/1-deposit.test.js
+++ b/test/1-deposit.test.js
@@ -5,33 +5,61 @@ describe("P2PIX deposit test", function () {
 
     let owner, wallet2, wallet3, wallet4;
     let p2pix; // Contract instance
+    let erc20; // Token instance
     let depositID;
 
     it("Will deploy contracts", async function () {
 
         [owner, wallet2, wallet3, wallet4] = await ethers.getSigners();
 
+       const ERC20Factory = await ethers.getContractFactory("MockToken");
+        erc20 = await ERC20Factory.deploy(ethers.utils.parseEther('20000000', 'wei')); 
+        await erc20.deployed();
+
+        // Check initial balance
+        expect(await erc20.balanceOf(owner.address)).to.equal(ethers.utils.parseEther('20000000', 'wei'));
+
         const P2PIX = await ethers.getContractFactory("P2PIX");
         p2pix = await P2PIX.deploy(2, [owner.address, wallet2.address]);
         await p2pix.deployed();
+
         // Verify values at deployment
         expect(await p2pix.validBacenSigners(owner.address)).to.equal(true);
         expect(await p2pix.validBacenSigners(wallet2.address)).to.equal(true);
     });
 
     it("Should allow create a deposit", async function () {
-        const transaction = await p2pix.deposit(ethers.constants.AddressZero, 1000, 'SELLER PIX KEY');
-        depositID = ethers.utils.solidityKeccak256(['string', 'uint256'], ['SELLER PIX KEY', 1000])
+
+        let transaction = await erc20.approve(p2pix.address,ethers.utils.parseEther('1000'));
+        await expect(transaction).to.emit(erc20, 'Approval').withArgs(
+            owner.address,
+            p2pix.address,
+            ethers.utils.parseEther('1000')
+        )
+
+        transaction = await p2pix.deposit(
+            erc20.address,
+            ethers.utils.parseEther('1000'),
+            ethers.utils.parseEther('0.99'),
+            'SELLER PIX KEY'
+        );
+        depositID = ethers.utils.solidityKeccak256(['string', 'uint256'], ['SELLER PIX KEY', ethers.utils.parseEther('1000')])
         await expect(transaction).to.emit(p2pix, 'DepositAdded').withArgs(
             owner.address,
             depositID,
-            ethers.constants.AddressZero,
-            1000
+            erc20.address,
+            ethers.utils.parseEther('0.99'),
+            ethers.utils.parseEther('1000')
         )
     })
 
     it("Should prevent create same deposit", async function () {
-        await expect(p2pix.deposit(ethers.constants.AddressZero, 1000, 'SELLER PIX KEY'))
+        await expect(p2pix.deposit(
+            erc20.address,
+            ethers.utils.parseEther('1000'),
+            ethers.utils.parseEther('0.99'),
+            'SELLER PIX KEY'
+        ))
         .to.be.revertedWith('P2PIX: Deposit already exist and it is still valid');
     })
 
@@ -44,13 +72,27 @@ describe("P2PIX deposit test", function () {
     })
 
     it("Should allow recreate the deposit", async function () {
-        const transaction = await p2pix.deposit(ethers.constants.AddressZero, 1000, 'SELLER PIX KEY');
-        depositID = ethers.utils.solidityKeccak256(['string', 'uint256'], ['SELLER PIX KEY', 1000])
+
+        let transaction = await erc20.approve(p2pix.address,ethers.utils.parseEther('1000'));
+        await expect(transaction).to.emit(erc20, 'Approval').withArgs(
+            owner.address,
+            p2pix.address,
+            ethers.utils.parseEther('1000')
+        )
+
+        transaction = await p2pix.deposit(
+            erc20.address,
+            ethers.utils.parseEther('1000'),
+            ethers.utils.parseEther('0.99'),
+            'SELLER PIX KEY'
+        );
+        depositID = ethers.utils.solidityKeccak256(['string', 'uint256'], ['SELLER PIX KEY', ethers.utils.parseEther('1000')])
         await expect(transaction).to.emit(p2pix, 'DepositAdded').withArgs(
             owner.address,
             depositID,
-            ethers.constants.AddressZero,
-            1000
+            erc20.address,
+            ethers.utils.parseEther('0.99'),
+            ethers.utils.parseEther('1000')
         )
     })
 
@@ -67,7 +109,7 @@ describe("P2PIX deposit test", function () {
         await expect(transaction).to.emit(p2pix, 'DepositWithdrawn').withArgs(
             owner.address,
             depositID,
-            1000
+            ethers.utils.parseEther('1000')
         )
     })
 })
\ No newline at end of file
diff --git a/test/2-lock-release.test.js b/test/2-lock-release.test.js
new file mode 100644
index 0000000..1649cee
--- /dev/null
+++ b/test/2-lock-release.test.js
@@ -0,0 +1,78 @@
+const { expect } = require("chai");
+const { ethers } = require("hardhat");
+
+describe("P2PIX lock/release test", function () {
+
+    let owner, wallet2, wallet3, wallet4;
+    let p2pix; // Contract instance
+    let erc20; // Token instance
+    let depositID;
+
+    it("Will deploy contracts", async function () {
+
+        [owner, wallet2, wallet3, wallet4] = await ethers.getSigners();
+
+       const ERC20Factory = await ethers.getContractFactory("MockToken");
+        erc20 = await ERC20Factory.deploy(ethers.utils.parseEther('20000000', 'wei')); 
+        await erc20.deployed();
+
+        // Check initial balance
+        expect(await erc20.balanceOf(owner.address)).to.equal(ethers.utils.parseEther('20000000', 'wei'));
+
+        const P2PIX = await ethers.getContractFactory("P2PIX");
+        p2pix = await P2PIX.deploy(2, [owner.address, wallet2.address]);
+        await p2pix.deployed();
+
+        // Verify values at deployment
+        expect(await p2pix.validBacenSigners(owner.address)).to.equal(true);
+        expect(await p2pix.validBacenSigners(wallet2.address)).to.equal(true);
+    });
+
+    it("Should allow create a deposit", async function () {
+
+        let transaction = await erc20.approve(p2pix.address,ethers.utils.parseEther('1000'));
+        await expect(transaction).to.emit(erc20, 'Approval').withArgs(
+            owner.address,
+            p2pix.address,
+            ethers.utils.parseEther('1000')
+        )
+
+        transaction = await p2pix.deposit(
+            erc20.address,
+            ethers.utils.parseEther('1000'),
+            ethers.utils.parseEther('0.99'),
+            'SELLER PIX KEY'
+        );
+        depositID = ethers.utils.solidityKeccak256(['string', 'uint256'], ['SELLER PIX KEY', ethers.utils.parseEther('1000')])
+        await expect(transaction).to.emit(p2pix, 'DepositAdded').withArgs(
+            owner.address,
+            depositID,
+            erc20.address,
+            ethers.utils.parseEther('0.99'),
+            ethers.utils.parseEther('1000')
+        )
+    })
+
+    it("Should allow create a new lock", async function () {
+        transaction = await p2pix.connect(wallet3).lock(
+            depositID,
+            wallet3.address,
+            ethers.constants.AddressZero,
+            '0',
+            ethers.utils.parseEther('100'),
+            []
+        )
+        const lockID = ethers.utils.solidityKeccak256(['bytes32', 'uint256', 'address'], [
+            depositID,
+            ethers.utils.parseEther('100'),
+            wallet3.address
+        ])
+        await expect(transaction).to.emit(p2pix, 'LockAdded').withArgs(
+            wallet3.address,
+            lockID,
+            depositID,
+            ethers.utils.parseEther('100')
+        )
+    })
+
+})
\ No newline at end of file