port number to prepaid

I have been trying for 6 months to port my cell phone numbers to prepaid, I have been to Telkom Canal Walk Century City 4 times, I have filled in forms, sent numerous e mails, on the last occasion I asked for the branch manager, who said he would sort it out still waiting. I have been on the Home Premium package for 3 years which included voice sims. I am now moving house and have canceled my ADSL line without losing my cell numbers. I have had no confirmation or communication. I have had this upgraded several times still nothing.