Hi
Your right the coupon get away. Strange as I tried this many times before reporting.
But I have an other problem. When the coupon is added and then something changes in the cart and the value goes under the 50'000yen then the system leaves the window "cart" and the message "cart is empty" shows and need to do the check out process again. see the photo that shows the cart is empty but there are articles in the cart (shown left).
If the value is under 50'0000yen and the articles changes then window "cart" just get updated and stays, the same if the value is always over 50'000yen and product changes then the window "cart" gets updated and stays. Is this maybe just a set up problem?
My shop is not online now I'll send you the access by mail.
Thanks
Raphael