Subway review: Unauthorized credit card charges

I ordered 2 subs through the app, received a message that the sandwiches were ready for pick up. When I went into the restaurant, they had not even started on sandwiches and said it would be at least an hour! Asked for refund, said it would have to be done through corporate. I have emailed corporate for refund 3 times and I have received zero response. This is illegal practice to charge for products never produced!