Can not cancel contract

I signed up for a Telkom LTE contract on 17 May 2014. <br> <br> In January 2015 I experienced issues. The Internet access became slow at times and the signal deteriorated until there was no more signal at all. I tried a couple of settings to trouble shoot the signal and it became evident that for some reason, there is no more signal in the area. In February 2015 I started contacting Telkom data customer service and explaining my problem. <br> <br> It was in July 2015 when I was finally allowed to lodge a cancellation case. I waited and enquired frequently. This entire wait happening while Telkom is still debiting my bank account every month for the service I am not getting.<br> <br> Every second day or so I contact the customer care. They do nothing for me and tells me that the only thing they can do is escalate the issue.I eventually called and asked to speak to a supervisor. I was contacted by Mkhululi on 17 Feb and asked me to take the device to the store. The store refused to take it. Now every second day or so I call and try my luck. On Monday, my bank account was debited by the way.