diff --git a/src/main/java/com/unicenta/pos/payment/PaymentGatewayMediaPayments.java b/src/main/java/com/unicenta/pos/payment/PaymentGatewayMediaPayments.java
index a54fe0f..1bb5245 100644
--- a/src/main/java/com/unicenta/pos/payment/PaymentGatewayMediaPayments.java
+++ b/src/main/java/com/unicenta/pos/payment/PaymentGatewayMediaPayments.java
@@ -30,69 +30,68 @@ import java.util.ArrayList;
 @Slf4j
 public class PaymentGatewayMediaPayments implements PaymentGateway {
 
-    public PaymentGatewayMediaPayments() {
+  public PaymentGatewayMediaPayments() {
+  }
+
+  Window getPaymentWindow(double amount) {
+    if (amount > 0) {
+      ArrayList<JPaymentSelectReceipt> paymentWindows = new ArrayList<>();
+      for (Window window : Window.getWindows()) {
+        if (window instanceof JPaymentSelectReceipt) {
+          paymentWindows.add((JPaymentSelectReceipt) window);
+        }
+      }
+      return paymentWindows.get(paymentWindows.size() - 1);
+    } else {
+      ArrayList<JPaymentSelectRefund> paymentWindows = new ArrayList<>();
+      for (Window window : Window.getWindows()) {
+        if (window instanceof JPaymentSelectRefund) {
+          paymentWindows.add((JPaymentSelectRefund) window);
+        }
+      }
+      return paymentWindows.get(paymentWindows.size() - 1);
+    }
+  }
+
+  @Override
+  public void execute(PaymentInfoMagcard payinfo) {
+
+    int timer = 0;
+    int timeout = 180;
+
+    double roundedValue = RoundUtils.round(payinfo.getTotal());
+    new Application().mediaPaymentsTransaction(roundedValue, getPaymentWindow(roundedValue),
+        payinfo.getTransactionID());
+
+    while (AppContext.getIsProcessing() == null || AppContext.getIsProcessing()) {
+      try {
+        log.info("uniCenta-oPos: waiting for payment to complete ....");
+        Thread.sleep(1000);
+        timer += 1;
+        if (timer > timeout)
+          break;
+      } catch (InterruptedException e) {
+        log.error(e.getMessage());
+      }
     }
 
-    Window getPaymentWindow(double amount) {
-        if (amount > 0) {
-            ArrayList<JPaymentSelectReceipt> paymentWindows = new ArrayList<>();
-            for (Window window : Window.getWindows()) {
-                if (window instanceof JPaymentSelectReceipt) {
-                    paymentWindows.add((JPaymentSelectReceipt) window);
-                }
-            }
-            return paymentWindows.get(paymentWindows.size()-1);
-        }
-        else {
-            ArrayList<JPaymentSelectRefund> paymentWindows = new ArrayList<>();
-            for (Window window : Window.getWindows()) {
-                if (window instanceof JPaymentSelectRefund) {
-                    paymentWindows.add((JPaymentSelectRefund) window);
-                }
-            }
-            return paymentWindows.get(paymentWindows.size()-1);
-        }
-    }
-
-    @Override
-    public void execute(PaymentInfoMagcard payinfo) {
-
-        int timer = 0;
-        int timeout = 180;
-
-        double roundedValue = RoundUtils.round(payinfo.getTotal());
-        new Application().mediaPaymentsTransaction(roundedValue, getPaymentWindow(roundedValue), roundedValue > 0 ? payinfo.getTransactionID() : null);
-
-        while (AppContext.getIsProcessing() == null || AppContext.getIsProcessing()) {
-            try {
-                log.info("uniCenta-oPos: waiting for payment to complete ....");
-                Thread.sleep(1000);
-                timer += 1;
-                if (timer > timeout) break;
-            } catch (InterruptedException e) {
-                log.error(e.getMessage());
-            }
-        }
-
-        if (AppContext.getMediaPaymentsPaymentResult() == null) {
-            payinfo.paymentError("Transaction Error! Please try again", "No Response");
-        }
-        else if ("APPROVED".equals(AppContext.getMediaPaymentsPaymentResult().getProcessingDetails().getStatus())) {
-            payinfo.setCardName(AppContext.getMediaPaymentsPaymentResult().getProcessingDetails().getCard().getType());
-            payinfo.setVerification(AppContext.getMediaPaymentsPaymentResult().getProcessingDetails().getVerificationMethod());
-            payinfo.setChipAndPin(true);
-            payinfo.paymentOK(
-                    AppContext.getMediaPaymentsPaymentResult().getAdditionalInformation().getRequestId(),
-                    AppContext.getMediaPaymentsPaymentResult().getTransactionDetails().getId(),
-                    AppContext.getMediaPaymentsPaymentResult().getProcessingDetails().getStatus()
-            );
-        }
-        else {
-            String errorMsg = AppContext.getMediaPaymentsPaymentResult().getErrorMessage();
-            if (errorMsg == null) {
-                errorMsg = AppContext.getMediaPaymentsPaymentResult().getMessage();
-            }
-            payinfo.paymentError("Transaction Error! Please try again", errorMsg);
-        }
+    if (AppContext.getMediaPaymentsPaymentResult() == null) {
+      payinfo.paymentError("Transaction Error! Please try again", "No Response");
+    } else if ("APPROVED".equals(AppContext.getMediaPaymentsPaymentResult().getProcessingDetails().getStatus())) {
+      payinfo.setCardName(AppContext.getMediaPaymentsPaymentResult().getProcessingDetails().getCard().getType());
+      payinfo
+          .setVerification(AppContext.getMediaPaymentsPaymentResult().getProcessingDetails().getVerificationMethod());
+      payinfo.setChipAndPin(true);
+      payinfo.paymentOK(
+          AppContext.getMediaPaymentsPaymentResult().getAdditionalInformation().getRequestId(),
+          AppContext.getMediaPaymentsPaymentResult().getTransactionDetails().getId(),
+          AppContext.getMediaPaymentsPaymentResult().getProcessingDetails().getStatus());
+    } else {
+      String errorMsg = AppContext.getMediaPaymentsPaymentResult().getErrorMessage();
+      if (errorMsg == null) {
+        errorMsg = AppContext.getMediaPaymentsPaymentResult().getMessage();
+      }
+      payinfo.paymentError("Transaction Error! Please try again", errorMsg);
     }
+  }
 }