Uber driver didn't end my ride

Late yesterday at around 17:30 I booked an Uber to take me from point A to my home (6 minutes away). The trip estimation was R29. When I arrived home, I did not check the app again. A while later I received a message showing a deduction of R249 for my trip. I immediately tried to contact the driver, as this showed that he did not end my trip. He denied not ending the trip and said that there must have been an app error. I took photos of the charge on the app. Today the app is showing as having charged me R23.20 for the trip, but the full amount was still deducted from my bank account. I have tried calling the Uber help line more times than I have ever tried calling anyone in my life before and the lines are jammed. I have now sent a formal complaint to their (help.uber.com) and I await to see if they contact me. The driver still maintains that he has sent an enquiry on my behalf, but everything just looks shady, especially now that the charged amount has been changed, but no refund has been done to my account for the difference.