MTN SERVICES ARE TERRIBLE

I've been trying to get a hold of MTN since last week because my account & contract is over. I DON'T want to renew it again. After my last payment was made in April, I've been sending e-mails, Tweets, trying to call, with no response. It's not my fault that your company is on a strike. WHY do we as customers, THE CLIENT, have to suffer for it?! My network's been on and off, and today I get a text saying if I don't Pay R90.00 my phone will get cut off! WHY?! I want to end my contract! I don't want to renew it again. I would rather invest in ***EONS & spend a good half of my life training them to send messages to people than ever go with MTN again! I need this resolved. Your service is pathetic! Can't wait to get rid of MTN!