UberEats *******

On the 21st of November I ordered from a Fastfood place for a work lunch. I was debited R1320.60 at 12.27. Shortly after I was informed that the restaurant did not have some of the items I ordered and had a limited amount of time to change, or the order will be cancelled. I Changed the items using the prompt the app gave me and submitted. At 12.34 I was debited another R959.20 from the same Restaurant. On the App it shows two orders (R959.20 + R549.45). I queried this and I'm being told about not having enough money in my account for the trip fare etc. I have sent through proof of money leaving my account and times and I keep getting the same standard response as if I am talking to an automated machine. I am not out with R771.80 which was not reversed or refunded and no one to assist me other than the automated response for the 4th time now.