MTN have not moved my 3G contract to Prepaid

I contacted MTN customer care one month ago to ask them to switch my 3G account from contract to prepaid as I was out of contract. I contacted them 3 times since then and nothing has been done. Every time the customer care consultant says that it is the job of retentions but I am not able to contact retentions. <br> NO ONE IS WILLING TO DO ANYTHING ABOUT THIS.<br> If my account is not cancelled shortly I will move my cell phone account to Cell C and if I am charged for internet usage this month on my 3G, I will take MTN to Consumer Protection Ombudsman. I am really hoping MTN can sort this out shortly. I have had enough.<br> <br> Lauren Schurink