No Network on MTN

I am an MTN Business customer with several contracts with MTN. On one of the contracts, which I've had for the past 12 months, I've been having network issues since 28 April. On this date, the network when down in Naboomspruit / Mookgopong. We have no network. Phone allows for emergency calls only. Cannot make or receive calls. No internet connection. I have reported the issue several times. I have contacted MTN, I have logged a query online and I have sent emails. To date I have not received proper feedback, and we still don't have any network reception. I submitted GPS co-ordinates, I have checked device settings etc. I have spoken to a number of people in the area who are having the same issue.

I am paying for a contract which I cannot use at all. I have now started using a Vodacom prepaid sim card since MTN has no network. I would appreciate some feedback from MTN, but they are not making an effort to resolve my issues.