Enough of mtn incompetence

Iam a long standing customer of mtn, at least 23 years. Without request mtn just cancelled my main contract number which I had for 23 years. Dealing with their 135 customer service number is a total disaster. The staff do not get back to you, drop the calls and are conveniently offline. I have escalated this query via the service Centre TheGlen, 135 and even their so called complaints email address. I Even tried mtn ex staff members to assist with ESCALATIONS, but they also received the run around. Nobody gets back to you. This stupid cancellation has resulted in a mountain of frustration, loss of business and cost me alot of money loading prepaid airtime and data as I had to get mtn to make number available via prepaid in order to enable use for work purposes. I am here in store to officially remove all my other business {at least 6 other contracts} from mtn as I cannot deal with this level of incompetence anymore. The only person that was helpful so far is Olivia from MTN The Glen.