Telkom is a **** with unauthorized debit orders after they bridge their own contract

I had a mobile contract with Telkom from 2***. in 2020 April few months before the end of the contract I had an issue with the service from Telkom and I called them but they failed to resolve the problem. I then asked them to cancel the contract via phone call but they refused saying I have to make a request on their website of which I did. after the request I also called Telkom to ensure that they got the request and they confirm to have gotten it. Telkom stopped debiting my account in 2020 and i assumed they have cancelled the contract. After a year Telkom started to make unauthorized debit orders on my account for money ranging between R1300 to R3600. I called Telkom then they told me they did not cancel my contract when i requested them to cancel it in 2020 because of outstanding amount on the account. i then requested them to send me an invoice of what they are charging me for since my Telkom contact sim stopped working in 2020 and i had even lost the sim but Telkom never send me any invoice of what they charging me for. Telkom bridged our contract again and again, the contract I signed with Telkom stated that should I request to cancel the contract any outstanding amount will be invoiced to me so that I settle the amount for them to cancel the contract. even today Telkom keep on debiting my account for different amounts sending me massages that my account is restored. but which account are you restoring Telkom? I don't even have a Telkom sim card. Telkom is a **** they keep doing unauthorized debit orders on my account, Telkom please at least respect the mobile contract you make people sign and stop doing unauthorized debit orders you are costing me a lot of money each month.