Easy as ABC

Amazing little tweak to the built-in coupon codes.
I had to add this code to my functions.php for the discount to refresh when changing payment typ:

//Update the cart preview when payment method is changed by the customer
        add_action( 'woocommerce_review_order_after_submit' , function () {
        	?><script type="text/javascript">
        		jQuery(document).ready(function($){
        			$(document.body).on('change', 'input[name="payment_method"]', function() {
        				$('body').trigger('update_checkout');
        				$.ajax( $fragment_refresh );
        			});
        		});
        	</script><?php
        } );

Thanks!