diff --git a/booking.stripe.js b/booking.stripe.js
index c6e2816..8d92b04 100644
--- a/booking.stripe.js
+++ b/booking.stripe.js
@@ -35,12 +35,21 @@ jQuery(document).ready(function($) {
         //email: currentForm.find('input[name="email"]').val(),
         //amount: currentForm.find('input[name="amount"]').val() * 100,    
         //alert($(':input[name="description"]', $stripeForm));
+
+        //set the amount dynamically based on the card brand from the token
+        if ($(':input[name="card_brand"]', $stripeForm).val() == 'American Express') {
+            var $amount =  $(':input[name="foreign_gross_amount"]', $stripeForm).val() * 100; 
+        }
+        else {
+            var $amount =  $(':input[name="gross_amount"]', $stripeForm).val() * 100; 
+        }
+
         handler.open({
             name: $settings.name,
             currency: "aud",            
             description: $(':input[name="description"]', $stripeForm).val(),        
             email: $(':input[name="email"]', $stripeForm).val(),   
-            amount: $(':input[name="amount"]', $stripeForm).val() * 100,  
+            amount: $amount,  
             zipCode: true,
             closed: function() {
                 //document.getElementById("booking_stripe_form").submit();