****med by an UBerEats driver!!!

A ***** of a delivery man came to deliver in my office (Bruma office park). I paid cash and got my order. 10 minutes later I get a message saying that the driver reported that I did not pay!!!! Even worse the ****en App does not allow a person to properly and effectively send a query. My email was also returned!!!!! I want this sorted out ASAP. I even gave that idiot a tip!!!!! I ordered from KFC Eastgate Mall, Johannesburg. His name is Roger.