Contract cancellation

I've been trying to cancel my Telkom Mobile contract since the 27 August 2015. I've emailed through the relevant documents to the cancellations department but to get feedback as to when my contract will actually be cancelled is impossible. I've contacted the call centre more than 50 times in the past two months and no one has a clue as to what is going on. You can't contact the cancellations department directly which is ridiculous. The only contact with them is through the call centre and they have to send them an email to contact you which never ever happens. I am so sick and tired of Telkom Mobile happily debiting my account every month for something that should have been cancelled over a month ago. For those considering a Telkom contract do yourself a favour and go to another network, their service is absolutely disgusting. I've had to deal with other networks recently and Telkom Mobile is by far the worst company ever.