Uber *****ing money

Uber has been deducting R50 from my account on a regular basis.....I have tried my best for a way to contact Uber but this doesn't exist. The moment there is cash in that account, I pay for an Uber ride in Cape Town...although I live in Benoni. I have deleted the app and will definitely never use Uber again...and I will make sure that I tell my friends and colleagues to avoid Uber at all costs.