Dishonesty of driver and back office

On Saturday afternoon I booked a trip home. The driver arrived quickly so I informed him that I am adding a stop to my daughter's school before going home. He understood and accepted. In the evening I saw an sms saying I ended my trip early. When I checked the Uber app it showed that I had booked to go to Doornfontein Taxi rank and I was charged R211 as oppose to R108 , which was the amount reserved on my bank account. it was about the same as the amount for the inbound trip in the morning. I was mortified and contacted Uber on the app. They claimed that I added the Doornfontein destination. This is strange, the driver did not say a word and just dropped me at home, so how could there have been another stop booked? The driver was willfully deceiving me, or he did not see this extra destination. If he did he see, he would have asked me about it, so where id this extra destination come from???. After my complaint, Uber repeatedly tried to debit my account with a new amount of R211 instead on expected R108 reserved on my card. This caused me to incur fees because that amount was unpaid. Please stop trying to debit R211, when R108 is already reserved. Uber cannot debit my account at will and you also owe me for unpaid fees on my account. I definitely did not add a strange and unsafe location of Doornfontein taxi rank. Either the driver did not see the extra destination of he did see it and was grossly dishonest. I cannot be charged for a trip I did not take. Your back office is also dishonest in trying to debit me again after the trip.