Telkom, do they know what they are doing?

We cancelled a data package with Telkom on the 23rd November 2021. They are still deducting the debit order every month. I have been into Telkom Seapoint numerous times to try sort out the problem but have had no luck. The representative says the problem is solved, but still the money is taken out of the bank account. I have cancelled the debit order which has made no difference because a different amount is deducted. Telkom have also charged R200 for a returned debit order. Today Telkom deducted R4000 from the account. I am at my wits end, I have spoken to so many people including the manager at the store and not one person can sort out my problem. I need the data packaged cancelled as of 23/11/2020. Why do we have to fight to get a result? Telkom do your job!