I use to manage 2 different subways here in St Louis Mo and after Covid hit all stores stopped taking coupons and did not honor what the app offered either. Product prices went up and subway couldn’t afford to honor the coupons because of they did they would actually be losing quit a bit of money. The real issue is that subway corporate send out the coupons and most all subways are franchises and independently owned. Since then the stores around here started accepting coupons with online orders only. Now, as of today some of the subways around here will except coupons but you can’t use then for their high end sandwiches such as steak, chicken of any kind, or any of the club sandwiches. They only apply to the ham, turkey, cold cut, meatball, veggie