Big Error on App

Good Day You have a very UN happy Uber Client here. I was moving to a new place and after the long hard move I changed my address and placed an order. I tried Rebel pizza and placed the order. But the screen said the delivery time was from when I placed the order to 25 minutes. It didn't give me the normal track you order screen. After 45 minutes same thing could check order - I phoned rebels from the app and and the phone number took me to Rebel Pizza in Fourways Johannesburg and Im in Pretoria. ??? I tried to cancel order no luck. I tried to contact U Uber no luck and no idea here my order is I made a new order somewhere else. 10 minutes after that Rebel Order rocks up at my gate with my order. I now have two order and i could cancel the other order. WHAT NOW - NOT A HAPPY UBER CLIENT. WILL PROBABLY NEVER USE YOU AGAIN.