Add new file

activity_payment_page.xml

+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="16dp"
+    android:paddingLeft="16dp"
+    android:paddingRight="16dp"
+    android:paddingTop="16dp"
+    tools:context=".PaymentPage"
+  >
+
+    <com.craftman.cardform.CardForm
+        android:id="@+id/cardform"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+       >
+
+        <Button
+            android:id="@+id/button6"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:onClick="CountdownTimer"
+            android:text="Review Cars" />
+    </com.craftman.cardform.CardForm>
+</RelativeLayout>