Deduction without travelling

I installed the App and put in my account details. Biggest mistake. They deducted r50 just for installing the app. Then I tried to put in a destination. I saw a driver number and called him in. SENZO. I queried the amount before requesting him to come and his amount was twice the normal cabs. I refused his help. 5 minutes later he called me and I said I don't need his services he said he is in the airport and let's speak face to face I agreed and he quoted the same high amount. I refused to use the services and thereafter Uber charged me another R70. This was not my fault as the driver requested to see me. I went into the app as I became worried how money is just being deducted from my account. I tried removing my bank details but could not. For opening the app again I was charged another R50. Altogether I lost R170 just for nothing.