Worst Call Centre....Ever.

I have a contract with MTN and have being paying the account to better my credit score but a few months ago Transunion had information that I owed MTN around 200K for a phone which was incorrect. I called MTN to rectify this and that matter was resolved but they also removed my contract from Transunion and now my "MTN account" doesn't reflect at all.....So the point of getting this contract is now gone..... I have been calling MTN to rectify this for 4 months now and have been sent from pillar to post by customer service agents who clearly do not know which department to send me to or they just plain do not understand. I've been given ref numbers and been told requests have been logged the last lady I spoke to sounded like she was not paying attention to me while we spoke.....