Beyond horrible service

When making a purchase I was made to pay twice for one meal, when I made the cashier aware of this they advised me that my money will be returned back to me in a few minutes, a day later I haven’t received my money back and no one is in contact with me. I decided to call and follow up on their side,David from Roccomamas Little falls was rude and inconsiderate, screaming at me and he hung up on me before even resolving the matter. I want my MONEY BACK ROCCOMAMAS LITTLE FALLS. David please go freshen up your customer service skills. You are a horrible human being. As a manager I feel sorry for your staff, I can only imagine how you treat them.