Overcharging after the ride

I use uber Daily to get to work and home. Almost every trip I take there is a rise in payment at the end. I am not talking about 1 or 2 rand. It was somtimes by R50. It is not that there was heavy trafic or detours that was requested. Everytime I have to first gi onto uber help and then eventualy they will pay back the difference. I asked them for a number and they are refusing to give it to me. The one said there was tecnical difficalties on the app that is why it is happening. The other time they said that it is because I told the driver what rout to take. They have all these generic messages that I think is computer generated that they send and no one is actually attending to the real issue at hand. I am also on the Uber pass that must actually give me a better fair on evere trip that I take for 45 trips a month and then I have to pay somtimes more than a person that is not on uber pass. People be warned, uber is not looking after the riders or their drivers, because if this happens, then most of the times the driver and the rider gets into an argument which is unnecesarry and that becaus of the app that has tecnical difficalties. MY QUESTION IS TO UBER WHAT ARE YOU GOING TO DO ABOUT THIS AND BY WHEN WILL THIS TYPE OF THING BE OUT OF YOUR APP.

Just a really concerned and whide awake user of your service. Even your drivers are complaining about it.