When you order and pay by this App, but the store cannot make the sandwich, you cannot get your money back and there is no customer service whether through the app or otherwise. I had to fill out an online form for a refund from their website, but they simply said sorry for your experience, but no refund. In my case, I went to a dead empty store for a pickup but the staff didn't know how to work the computer or make sandwiches, and after 23 minutes of waiting my order wasn't even started!