Sort out your stuff-up and refund me, please

At 18:01, a take-away order was placed at the River Square (Three Rivers, Vereeniging) outlet. (Order number 179 dated 18/04/2019 at 18:01). When the food was unpacked at home, we realised that the content of the paper-bag was NOT what we ordered and paid for. We received half of what we order (and paid for) and half of someone else's budget meals. When I called Vuyo, I was told to speak to the Regional Manager for a refund. Vuyo (from the River Square outlet) was going to send contact details for the Regional manager. No SMS was received, as promised. I am not going to be hard-done by your incompetence. We paid for meals that we did NOT RECEIVE. How do you intend to fix your blunder which, incidentally, occurs far too often? I am not going to pay for your mistakes. REFUND ME, PLEASE. SORT THIS OUT!!!!!