Checkers & Rally's

I went to rallies on Vandyke in warren around 7:00pm on june 23 2023, I only have a short time for lunch, I had a coupon for a free Burger and the cashier said she wouldn't accept it. I asked to talk to the manager and she said that she was and her name was Ashley. She never asked to see the coupon just rejected it over the drive trough speaker. If you dont honor your own coupons why should I trust you with my business? It will be a while before I go to another rallys or checkers.