3 MONTHS TO MOVE A NUMBER FROM CONTRACT TO PREPAID

I read a report by Lady KA. I have the exact same problem with MTN.<br> My contract expired on the 29 July 2015. I requested them to move the number to prepaid. It is 3 months later, countless calls,emails and numerous reference numbers. As I am writing this report right now I have been told that the number is on prepaid despite the fact that the retentions department has contacted asking me why am I not renewing my contract(easy to see why). The number has been offline for a week now yet MTN sometimes says its on prepaid and prepaid department says its on contract.I have been holding for 30 minutes right now as I am writing this report to speak to a manager who is never available. this is my third call today to utterly an *********** company.<br> im at my wits end with MTN. I have all the proof, references yet they still insist that they will do it today, today started three months ago