******* debiting by Telkom

I am struggling with an illegial debit order being deducted from my account. The deduction is stated to be going to 'TELKOM SA'. I have had it reversed every time, but it is now the fifth time that it has happened, and every time the amount increases. I visited a Telkom outlet, where I was told that they cannot do anything to stop this. They ran my ID number through their system, and told me that, as I told them, I do not have any business with Telkom. I need to have this resolved since I cannot afford the time to stand in a queue at the bank every month to have it reversed. I would appreciate it if a representative of Telkom could assist in stopping this ******* debiting.