Cancelling contract to prepaid

I have confirmation on email that my cell phone contract would become prepaid from 14.12.15 and I was told I could port to Telkom thereafter. This never happened even though I have an email confirming that it would. I have emailed the Service dept on numerous occasions and have proved that no one is actually reading the emails as I was rude on the last few emails and no one bothered to call me. The answer you receive is that the task is now closed like a standard answer. I have called the *** number and have found the computer choices extremely frustrating. I have called again now only to be told that nothing has changed on my cell number and it cannot be ported anyway. I asked to speak to a Supervisor as I refused to pay anymore to Autopage for a contract that was suppose to be sorted out in December already. I am now waiting for the Supervsior to contact me...