Cheating Uber

I requested a trip for R60, and uber ends up charging me for R67 and that doesn't work when you only have said amount of money in your bank. I've experienced this problem with Uber before, my price was always adjusted with helpful agents. I came across a very unhelpful agent though, and I was refused to have my price adjusted to what I requested. My score on uber is quite high and I have a Uber one subscription, but this is how uber deals with their premium and long standing clients. It happens often to many people that I know, and uber as a company had the nerve to change their rules so that they protected from having to adjust their price even if they are robbing you. I don't take kindly to being cheated and I don't think anyone does.