Telkom charging for service not delivered for 10 years!

Every month for the past 10 years Telkom has been deducting anything from R79 to R553 (this month) for TELKOM IDIRECT services cancelled so long ago. No one at Telkom is able to help as the account no longer exists. Yet, every month they simply deduct by debit order any amount that they feel like charging! When I manage to reverse the debit order via my bank, the bank charges me R150 for that service!! THIS IS *****!~!! NOT only do I want this sorted, BUT I want a refund for all the money Telkom has *******ly taken from me but they refuse to give me a name and address of someone high enough in Telkom to whom I can send a summons!!!!