Uber's unauthorized bank deductions

Since last week i have been writing to their Team letting them know i did not authorize R500 Uber One payment to be deducted from my account.

I have written numerous time had a responsefinally to state they had received and corrected the error however when i went to my bank, they had not received any confirmation of cancellation for the subscription which really has been a great fustration as i immediately instructed them to cancel it and do a refund. I still dont understandbwhy i didnt get an authorisation notification before they made the deduction, my bank says site is not secure which is disappointing. I would suggest no purchases should be made from them at all, thoroughly disguisted at this poor service!