migration of contract number to prepaid

I had a contract with foschini,one2one department. I cancelled my contract sometime last month, and I was told that once the contract will be migrated to prepaid. On the 05th of October my contract was terminated a few hours just after 12:00. On monday the 08th I called one2one department requesting them to migrate my contract to prepaid. I was told it takes 24 to 48 hours. Everyday I call the department to check wether the phone has been converted or not. Even today I am still waiting. This is very disturbing indeed, I am forever told that MTN has a backlog