cannot take out new contract due to MTN's incorrect referral to their legal department. POOR service telephonically and no feedback for weeks already

I wanted to take out a new mtn cell phone contract but reportedly on their system my name is at their legal department for a contract I had in 2014. This contract has come to an end and has been stopped by myself as well at the time. Until now, I have had no communication of this so called legal matter. What is worse is that It has been weeks that I have been waiting for the legal department to contact me as they apparently cannot be contacted. I have phoned numerous times and when asked to speak to a manager I get put on hold and eventually the call is dropped. How can the legal department not have a contact number? Why does it take them so long to contact me?