Want to use MTN as your mobile provider? Better get a lawyer.

I have an account dispute with MTN. So far I have: Spent about 3 hours trying to get through to 135 In the cases where I have actually been able to speak to a "service champion", there have been promises to escalate the problem. Nothing is done apart from receiving a message that my query has been resolved. I have been to a branch 3 times, only to be told that they can't do anything - I must dial 135. I have emailed customer care. I have emailed complaints. I emailed their advertised email address for ***** which has an automated response: Please note that our *** email address has been closed to ensure a more streamlined ***** reporting process. You need to dial 135 or 083 135 from any other number if you suspect that you have been a victim of *****. I have emailed their legal action department and received an automated message last Thursday (26 May) saying they would contact me in 24 - 48 hours. I have even couriered a letter to MTN head office, to which I have had no response. HOW DO YOU GET THEM TO DO ANYTHING APART FROM OVERCHARGE THEIR CLIENTS AT ANY OPPORTUNITY. The only reason I have given one star is because there is no option for 0.