Unauthorized charged that Uber refuses to refund back

A charge of R99.99 went off and l reach out apparently l purchased an Uber pass. Lord knows what that is but l didn't make such a transaction. I am asking them to reverse the charge and they can keep their "benefits" . Their response is they can't and l should make sure the charge doesn't set off for next month, something l was not aware off again. Now their customer care keeps sending me copy and paste messages without any empathy why l keep telling l didn't make the purchase. My card is since blocked because l reported l didn't authorize this transaction. I am appalled by this terrible customer care. Mind you it could have been a mistake on your end since you have my payment info that allows you to access my funds but when l reach out to say something is wrong and you maintain to keep funds that don't belong to you, it's crazy. I'm extremely disappointed in your services!