MTN Bad service

MTN had a network failure in the week of 20 September 2017. Immediately thereafter I could not call out on my contract phone. I can receive calls use data for Internet and emails but can't call out. I spent 10 hours a 3 MTN Service desks at shopping centre malls over the long weekend, called MTN on 1555 to save the problem , spoke to a supervisor Max Marshland at MTN Customer service who was helpful but couldn't get this to work as or was a technical network issue. Logged several tickets and they sent emails to the technical Dept and still no joy after 10 days. Last ticket number logged is SMC/ ********** 8102. I can't use my phone for business or private calls. The worst service ever. And the service desk staff can't assist as his is a technical issue. You can't get to spam to the right people and every time you query the same problem you have to explain to each of the 10 people you talk to for half an hour each. MTN please solve this problem immediately. I have no more words to describe you very bad customer service. I will never get a copy tract from your company again. Mervyn Cookson