Pathetic customer service

I visited Macdonalds Soshanguve crossing to redeem a deal on the app … when I got to the store there was a power failure in the area , the self service machines were not able to pick up the QR code from our app . I was then adviced in store to place the order on my app , I placed the order on the app and the app gave an error . I was then adviced again in the store to place it again since it will be picked as an error and the amount will be reversed automatically.. I placed the order again on the App it gave me an error again … the money was debited twice for an order I didn’t recieve

Worse thing is your app says my query was closed , without me being assisted , the call centre only called me once … the store gave me a non existing phone number… pathetic customer service