Unfair suspension, general bad service

My service has been suspended unfairly. It is a business phone.<br> <br> A few days ago I got an SMS saying I am in arrears with my MTN account. I tried calling the 808 number, but got a message saying the call centre is closed. Tried again yesterday and did get through - only to be told that I am R2695.86 in arrears for 90+. The operator could not find out what it is for, but told me my service will not be suspended and that she will request that I be contacted by MTN's legal department to explain what it is. This morning my service was suspended. I cannot get through to the call centre, keep getting the message that it is closed. I am incredibly frustrated and feel unfairly treated by a company I have been with for more than 10 years - and spend tens of thousands of rands with every year. My line is a business line. MTN is a liability. I have repeatedly emailed customer care, legal queries and colections admin - to no avail. This morning I emailed escalations as well as Bridget Bhengu (a person who contacted me the last time I complained on Hello Peter about MTN's shocking service.). No answer. No service. No information.