MTN are ******

Trying to cancel an MTN contract of someone who died He was my brother, had no income and I assisted him financially. He had an MTN contract..I have email twice and explained and included the death certificate. I am now on the phone. Have been transferred to SIX different people each of who sent me on to another dept. For the last two I have held for 20 minutes at a time. The calll has timed out twice. I cancelled the debit order from my account at my bank but on checking today see that MNT have now extracted R1228,24 from my account. As far as I am concerned MTN are willfully obstructing cancellation. According to call agent 3 this is a personal, month to month contract and there should be no problem in cancelling - but she couldnt do it. I am furious.