Supersonic mtn TERRIBLE SERVICE

Terrible service as I emailed them at the end of July 2020, indicating termination of my month to month internet service at the end of August 2020. This request was in line with 30 day cancellation request as per agreement of month to month status of the contract. However, they have repeatedly debited my account. I tried to get my bank ABSA BANK to reverse the payments even though I have proof of cancellation according to CAS -127404-L5Q7W7 which Supersonic sent to me after I contacted them via Facebook messenger. I've tried many times to contact them telephonically, however, I ended up wasting precious airtime as I'm always on hold. I've never experienced such with other providers. TERRIBLE, TERRIBLE, TERRIBLE SERVICE