bad services/accounts dept.

I'm having really bad services from mtn. My account has been handed over to their legal department for not making payments for a month and a half. According to the lady I spoke to in customer service two weeks ago who said if you do not pay for more then three months then you get handed over. The lady said she will email the legal department and cc myself in the mail but till today nothing has been done. My service is off now for two months and yet there is no effort from MTN to resolve the matters. My details was given the moment she connected with me so there is no reason she did not have my email address or contact. As security reason you need to identify yourself to proceed. My number is ***. I'm due for an upgrade but not sure should I take the upgrade. I've been with mtn for a very long time with no problems until now recently.