Uber One *****

I would like someone to do something about Uber One - I have Been debited with R50 every month for a few years now and I have done everything I can to try to cancel this. I have never agreed to this and never signed any membership but I can't stop them debiting my account. I even cancelled my card, but now they are charging this R50 to another card. This *****ulent and they should not be allowed to get away with this. How can this be stopped.