Poor support response on incorrect order placed.

I ordered a meal and made payment. Upon arrival I noticed that my order was incorrect and that the placed I placed an order at, didn't have "stock" or whatever to complete my order. Instead of rejecting my order and the refund the payment, the restaurant accepted my order and gave me a product of lesser value.

Using the in app rating system I sent a response to Mr D food and their support was in contact with me and said they will take it up with the restaurant and still to this day nothing has come from it.