TELKOM KEEPS DEBITING MY ACCOUNT EVEN AFTER EXPIRED CONTRACT

My contract with Telkom has expired in February 2020, its 2 months now and they still keep debiting my account and sending month to month data that I've never agreed on. I told them I am not renewing my contract and it still takes them forever to cancel my expired subscription. This is day light *******...I want Telkom to reverse my money because I did not renew my contract, I did not have any agreement with them to have a month to month subscription and I did not even use the data they've sent me and I have not requested them to continue sending me data which I've stated on several calls with their agents when they asked me if I want to renew my contract. I have sent several emails requesting their agents to cancel and they just keep sending from one department to another because they still want this cancelation to delay so they keep debiting. I want my money bac****