2 MONTHS ON AND NO RESPONSE FROM MTN

I had taken a contract for the samsung tablet 4 in Feb this year. Had numerous problems with the device. It was booked in for an assessment. I was oferred a new device, which I refused. I requested a cancellation of my contract. I have made numerous calls to the call centre, waiting up to 45 minutes at a time to be attended to. This has been going on for two months now. Each time, I am being told that I will get a call from staff in the cancellation department, but to date this has not happened. In the meantime, I am paying for a service that is no longer used. The service at MTN is disappointing especially as I have been a very loyal MTN consumer since its inception. I will think twice before I sign up with MTN again!!!