Telkom/Mondo No customer care

Mondo offered me a contract. Then Telkom started debiting from my account. I never seemed to use this account so I decided to request for my account to be closed. No one wanted to help me when I called customer care. I was told to do it myself, online. After struggling to find the page where I can cancel my account, I put the request through. My account was still being debited??? Sometimes not even on the date arranged. After numerous consultants have called from Mondo and Telkom my account still has not been closed??? I have started reversing the debit orders. Now I receive outstanding account messages??? I have never used the data and have always paid but when I wanted to cancel no one is interested to assist. It seems the only time they care about the customer is when they are selling the product, no customer care thereafter.