diff --git a/src/Components/Pay.jsx b/src/Components/Pay.jsx
index 110aece..e837bbb 100644
--- a/src/Components/Pay.jsx
+++ b/src/Components/Pay.jsx
@@ -1,4 +1,5 @@
 /*eslint-disable */
+import { useRef, useState } from "react";
 import { send } from "../Scripts/Testnet";
 import sjcl from "sjcl";
 function desprorr2(encripted) {
@@ -12,17 +13,27 @@ function desprorr2(encripted) {
   return decryptedMessage;
 }
 export default function Pay({ keys }) {
+  const [comision, setComision] = useState("0");
+  function calculatecomision() {
+    let amount = document.getElementById("amount").value;
+    if (amount < 1) {
+      setComision("0.001");
+    } else {
+      setComision((parseFloat(amount) / 500).toString());
+    }
+  }
   function handleSend() {
     console.log(keys);
     const amount = document.getElementById("amount").value;
     const to = document.getElementById("to").value;
+    const memo = document.getElementById("memo").value;
     console.log(amount);
     console.log(to);
     console.log(desprorr2(keys.private));
-    send(amount, desprorr2(keys.private), to);
+    send(amount, desprorr2(keys.private), to, memo);
   }
   return (
-    <div className="h-3/6 w-2/6 min-h-[20rem] bg-secondary self-center ml-[10rem] rounded-2xl flex flex-col gap-5 justify-center">
+    <div className="h-3/6 w-2/6 min-h-[25rem] bg-secondary self-center ml-[10rem] rounded-2xl flex flex-col gap-5 justify-center">
       <label htmlFor="send2" className="font-bold text-3xl self-center">
         Send to:
       </label>
@@ -36,11 +47,25 @@ export default function Pay({ keys }) {
       <label htmlFor="amount" className="font-bold text-3xl self-center">
         BLC Amount:
       </label>
+      <div className="self-center h-[2rem] w-3/6 flex flex-col justify-center gap-1 m-2">
+        <input
+          id="amount"
+          name="amount"
+          className="self-center w-full border-4 border-tertiary rounded-md"
+          type="number"
+          onChange={calculatecomision}
+        />
+        <p className="text-alert self-center text-sm">Comision: {comision}</p>
+      </div>
+      <label htmlFor="send2" className="font-bold text-3xl self-center">
+        Extra comment:
+      </label>
       <input
-        id="amount"
-        name="amount"
+        name="memo"
+        id="memo"
         className="h-[2rem] w-3/6 self-center border-4 border-tertiary rounded-md"
-        type="number"
+        placeholder="Example: Buy a great coffee"
+        type="text"
       />
       <input
         name="submit"
diff --git a/src/Components/Transactions.jsx b/src/Components/Transactions.jsx
index d1f7924..1991877 100644
--- a/src/Components/Transactions.jsx
+++ b/src/Components/Transactions.jsx
@@ -27,7 +27,7 @@ export default function Transactions({ keys }) {
     server
       .payments()
       .forAccount(publickey.current)
-      .limit(50)
+      .limit(100)
       .order("desc")
       .cursor(cursor)
       .call()
diff --git a/src/Components/recived.jsx b/src/Components/recived.jsx
index 435d12c..caaf8b9 100644
--- a/src/Components/recived.jsx
+++ b/src/Components/recived.jsx
@@ -22,6 +22,7 @@ export default function Recived({ keys }) {
   const activado = useRef(false);
   const cambiosdetectados = useRef(0);
   const operations = useRef([{ transaction_hash: 0 }]);
+  const operationsday = useRef(0);
   useEffect(() => {
     let cursor = [];
     if (!activado.current) {
@@ -29,7 +30,7 @@ export default function Recived({ keys }) {
         server
           .payments()
           .forAccount(publickey.current)
-          .limit(50)
+          .limit(100)
           .order("desc")
           .cursor(cursor)
           .call()
@@ -42,10 +43,14 @@ export default function Recived({ keys }) {
                 ? payments.records[payments.records.length - 1].paging_token
                 : null;
             console.log(payments);
+            const timestamp = "2023-08-10T08:15:07Z";
+            const date = new Date(timestamp);
+            const dayoftransaction = date.getUTCDate();
             if (
               operations.current[0].transaction_hash !==
                 payments.records[0].transaction_hash &&
               payments.records[0] !== undefined &&
+              operationsday.current === dayoftransaction &&
               cambiosdetectados.current !== 0
             ) {
               Swal.fire({
@@ -68,6 +73,9 @@ export default function Recived({ keys }) {
               cambiosdetectados.current += 1;
             }
             operations.current = payments.records;
+            operationsday.current = dayoftransaction;
+            console.log(operationsday.current);
+            console.log(dayoftransaction);
             // Si hay más transacciones, hacer otra solicitud
           })
           .catch((error) => {
diff --git a/src/Screens/MainApp.jsx b/src/Screens/MainApp.jsx
index 8feb930..2c98ddf 100644
--- a/src/Screens/MainApp.jsx
+++ b/src/Screens/MainApp.jsx
@@ -7,7 +7,7 @@ export default function MainApp({ keys, setKeys }) {
   return (
     <div className={"bg-five w-full h-full"}>
       <Header keys={keys} setKeys={setKeys} />
-      <div className="flex flex-row w-full h-5/6">
+      <div className="flex flex-row w-full h-5/6 justify-center">
         <Transactions keys={keys} />
         <Pay keys={keys} />
         <Recived keys={keys} />
diff --git a/src/Scripts/Testnet.js b/src/Scripts/Testnet.js
index 4a0079d..8c366f1 100644
--- a/src/Scripts/Testnet.js
+++ b/src/Scripts/Testnet.js
@@ -16,7 +16,18 @@ export  function getAddress(privatekey){
     const keypair = StellarSdk.Keypair.fromSecret(privatekey)
     return keypair.publicKey()
 }
-export function send(amount, privatekey, destination){
+export function send(amount, privatekey, destination, memo){
+    if(memo === undefined || memo === null){
+     memo = ".";
+    }
+    let comision = '0.001';
+    if(parseFloat(amount) < 1){
+        comision = '0.001';
+    } else{
+        comision = parseFloat(amount) / 500;
+        comision = comision. toString();
+    }
+    console.log(comision)
     const keypair = StellarSdk.Keypair.fromSecret(privatekey)
     server.loadAccount(keypair.publicKey()).then(account => {
         console.log(account)
@@ -31,9 +42,18 @@ const transaction = new StellarSdk.TransactionBuilder(account, {fee, networkPass
     // the decimal. They are represented in JS Stellar SDK in string format
     // to avoid errors from the use of the JavaScript Number data structure.
     amount: amount,
+  })).addOperation(StellarSdk.Operation.payment({
+    destination: "GDY2CP7XLBIY65YX7KS72X7JCZJVJ3AEPEEFTW3TYPLGDRWEZKAC7NR3",
+    // The term native asset refers to lumens
+    asset: new StellarSdk.Asset("BLC", "GBPKUSD5ZGMEXCS5YW7WAOC2QJSJLEX6LHGUTJIMDYYPFLPOT6GYFNNX"),
+    // Specify 350.1234567 lumens. Lumens are divisible to seven digits past
+    // the decimal. They are represented in JS Stellar SDK in string format
+    // to avoid errors from the use of the JavaScript Number data structure.
+    amount: comision,
   }))
   // Make this transaction valid for the next 30 seconds only
   .setTimeout(30)
+  .addMemo(StellarSdk.Memo.text(memo))
   // Uncomment to add a memo (https://www.stellar.org/developers/learn/concepts/transactions.html)
   // .addMemo(StellarSdk.Memo.text('Hello world!'))
   .build();
@@ -49,11 +69,12 @@ try {
     console.log('An error has occured:');
     console.log(e);
   }Swal.fire({
-    title: "Payment sent successfully",
+    title: "Payment sent successfully Comision: " + comision+ " BLC",
     icon: "success",
     confirmButtonText: "OK",
   });}
 catch(err){
+    console.log(err)
     Swal.fire({
         title: "Error!",
         text: "Invalid Transaction Data",
diff --git a/tailwind.config.js b/tailwind.config.js
index a809fa4..b3279b3 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -10,7 +10,8 @@ export default {
       'secondary':'#1B9AAA',
       'tertiary':'#DDDBCB',
       'four':'#F5F1E3',
-      'five':'#FFFFFF'
+      'five':'#FFFFFF',
+      'alert':'darkred',
     },
   },
   plugins: [],