Update

app/views/origami/payments/show.html.erb

@@ -334,6 +334,7 @@ $( document ).ready(function() {
  });
 
  $('#pay').click(function() {
+    $('#pay').text("Processing, Please wait!")
      if($('#balance').text() > 0){
         alert(" Insufficient Amount!")
      }else{
@@ -351,6 +352,7 @@ $( document ).ready(function() {
           if($('#balance').text() < 0){
             alert("Changed amount  " + $('#balance').text() * (-1) )
           }else{
+            $('#pay').text("Pay")
             alert("Thank you")
           }