Telkom ******* Debit orders

Telkom a ******* Debit orders. Finally catch it , thanks to my banks sms notification service. My banker tells me eventually gives me a number to enquire to stop the debit orders physically. That number is ********** ..I dial it and the lady takes down my ID number then forwards my call to another division apparently called debit order authorizations. Nothing came of it.worse it's different debit order amounts