Dissapointing Service when it should be simple

I ordered and paid online via the App that is supposed to make ordering quick and easy. Upon delivery the driver requested I pay again as the slip did not reflect I had paid. When I showed him my confirmation sms he requested I call the branch and confirm with them. So now I must use my airtime to clarify clear a mixup they had created by simply not communicating properly amongst each other. Needless to say I spent about 15min outside wasting my time instead of enjoying the football, which was the point of ordering on the App, and the moment the pizza came out the bag and I walked into the house, the dot went from RED TO BLACK.