Coupon Display on Authorize (SIM)

Have your business edition but when a customer checks out and DOES NOT put in a coupon the coupon field shows up in the Authorize.net SIM page. See attached. Anyway to get rid of this when customer doesn't have any coupons.

The coupon is only sent to authorize when there is one in the order.
Are you sure that you didn't had any coupon ?
I don't see how that could happen without a coupon. Could you give a link to your website so that we can see that ?

I just tested it on the live site and the same problem.

shop.bunkerhillsgolf.com

Could you change the line:
if(!empty($order->cart->coupon)){

to:
if(!empty($order->cart->coupon) && @$order->cart->coupon->discount_value>0){
in the file plugins/hikashoppayment/authorize.php and try again ?

Worked great Thanks!