No service from MTN Call Centre

I have been calling 808 practically everyday since 13 July as well as sent numerous emails to Customer Care, however there has been no response! My calls are automatically terminated before anyone answers, on 2 occasions, an agent actually answered but my call is again terminated and when you call back, the call is terminated. Today, 23 July, I have been waiting (and still waiting) for 1 hour and 18 minutes and counting for my call to be answered and still no one answers! All I want to do is terminate my contract and no one is willing to assist. I have told them that I will no longer pay for services post 13 July which was my expiration date. I called in early June and was advised to call back on the expiry date. I've tried doing that and no one responds to my emails (termination letter attached) or answers my calls or calls me back when choosing the \call-back"option. Absolutely shocking! All of this after the strike ended on 17 July. All I want to do is end of engagement with MTN and move to another network provider but I can't even do that because the other networks won't accept my application to port out without the confirmation from MTN. ICASA should shut them down!"""