KFC's ridiculous refund policy

On the 10th of April I ordered KFC on the Online app. The closest one to me was the one in Jean Avenue Centurion. The payment went through and the next it said that the order could not be finalised because of a technical error and that my money would be refunded. Thinking it would happen immediately I tried to order again and the same thing happened. I phoned to ask when the money would be refunded by which I was informed it would take 5 to 7 working days. I was so shocked. How can you not have a problem taking someones money but expecting them to wait to get it back because of a fault of yours. I will definitely not make use of that app again. And just want to warn other people too. If you are having technical problems that should be said on the app before payment is made. And so I am waiting and hoping my nearly R500 will be paid back