Terrible Service: Cell C - Cancellation of Contract.

I phoned Cell C cancellations department in Feb 2020 to cancel a data contract which has not been working/active since December 2019 - I paid the cancellation fee. However, Cell have not cancelled the contract and still debited my account. I have complained numerous times previously that the Simcard and the router do not work to both the call centre and the branch in Cresta - to no avail. No one was willing to assist me. It would seem that there is processes/procedures to deal with these queries, which is rather concerning.