CANCELLATION NIGHTMARE

During October 2017 I was contacted by a retention agent from Cell C. I informed her that I have no intention of renewing my contracts and that I wish to cancel both. On 7 November 2017 I send an e-mail in written confirmation of same and after cancelling same with the Cancellations department telephonically. Today 14 December 2017 cell c re-instated a stopped debit order against my account. I have been trying to reach the cancellations department but this morning my call was hung up by an agent, I held on the line for 7 - 13 minutes on numerous occasions, they phoned me back and every time they try and transfer my call and when they do I get cut off. Is this how cell c keeps their customers and make their money but making it nearly impossible to cancel a contract. I paid both diligently without missing payments for 2 years. It is done now. The rudeness of the consultants at the call centre will make me never ever take out a contract with them again. As well as this added aggravation.