Unhappy pedros customer

I ordered food from Pedros in Ormonde via Mr Delivery my order was accepted money went out of my card and then the order was rejected right after my money was deducted. I requested my money back but I got a message about waiting for 5 days which I don’t understand and I’m very upset about this because why must it take 5 days to reverse my money whereas the order was rejected!!! Also how do you accept and then reject an order? I’ve never experienced this before on Mr Delivery I’m very upset