Terrible Service by MTN - Disconnected my prepaid number of 20 yrs for no reason.

I am so frustrated with MTN I have being using my cell number since 1998 on prepaid. All of a sudden without notification just few minutes after using my phone yesterday after 5pm when I try making a call it said my number has been disconnected. I am disconnected from the world even now. When I called their customer service this morning it went to contract department they told me this number it's on contract sine 12/09/2018 and not on my name. They then transferred me to prepaid department where my call was disconnected I called again went to prepaid was referred to contract department where I was referred back from prepaid. I was sent from pillar to post with no assistance. I even requested to speak to manager at prepaid I spoke to NOMVUYO who was not helpful at all and referred me back to contract department and the MTN Store. I had to leave work and go to MTN Store in South Gate were John Mokoena escalated the query and advised me it will take 24 working hrs to get a response, meaning only Monday I will get response. I was not pleased with that as I need to be connected immediately I am loosing on business and my current condition can require an emergency at anytime and I don't have a means of contacting anyone. I explained my situation to Khotso the MTN Southgate mall manager. I need this matter to be addressed today and be reimbursed my data, airtime, my lost time, petrol in trying to resolve this matter and my disconnected time as it is costing me business and adding stress on my current condition. As advised I don't have alternative sim number - I am only reachable on my office nr ********** 327 till 2:30pm today.