Mtn Retentions will not close my contract

Two weeks ago I contacted MTN and requested that my postpaid contract be migrated to a prepaid contract. My contract has well exceded the 24 month period and I no longer wish to keep it. <br> <br> Like I say , for two weeks MTN (Thuso and Mmapula) have given me the run around. They say they would like to retain my business and refuse to complete my request. I called through to the customer service line (808) and am told \sorry we cannot help you our systems are down\" ... repeatedly !<br> <br> I have had a contract with MTN from the first day I owned a cellphone, 14 years ago , and can say with confidence that service like this solidifies my decision to close my contract/account and any further contact with MTN !<br> <br> I now have multiple ref numbers regarding my request , REF ***1 / REF ***2.<br> "