We frequently this location often. Tonight we decided to use a coupon. The young man at the counter was very nice and articulated to us that he couldn't accept the coupon because it didn't state the location of the restaurant. The manager stood next to him silently. The coupon did state only accepted at participating locations. While this location followed their protocol, they lost reoccuring customers due to a small accommodation. Will two people not returning impact their business? No. But small gestures like this impact your business in the large perspective because you are turning away good customers.