Subway complaint: Disrespectful Manager

My buddy ordered two sandwiches on the Subway app. We arrived at the store and waited 15 min. for sandwiches before going into the store (The order was curbside). To my surprise the store wasn’t crowded, and the sandwiches were not ready. Which was strange because there was five employees and the owner in the store. The owner was talking and counting money, two employees talking and standing around, one was cleaning, one stocking, and one fixing the sandwiches. After interrupting the manager conversation, I asked how long the order would be. She assured me the sandwiches would be ready shortly, so I returned to my buddy’s car. After waiting another 10 to 15 Mins, i returned to the store and requested a refund. Not only did the manager not refund our money, but she was also extremely rude and condescending. I was told to try to get a refund from the app.