Telkom complaint for taking money frommy bank account almost 2 years after confirmation of cancellation

I cancelled my landline/fiber in 2022 and received confirmation from telkom that it was cancelled. However, for many months now they deducted the amount of R1896,23 from my bank account. I July 2024 I went to the telkom store in Woodlands and had to pay R200, which I did. They said everything is now in order as they had the final invoice. However, on a monthly basis they deduct almost R2000 and every time the bank has to reverse it. I AM FED UP!!! I reported it on FB. Nothing was done and many people told me they all have problems with telkom. The one hand does not know what the other hand does!! I've rated 1 star as there is no option to rate a ZERO!!!!! Please help!