MTN offers NO service

I have been a contract-based customer with MTN for the past few years. I have had very poor service from them and have experienced much frustration at their lack of customer service. Since my contract has expired I requested to be switched to a pay-as -you-go customer as I no longer want MTN to be my service provider. I was told by a call-center operator that this would take 1day, and after 4 subsequent phone calls and 10 days later MTN eventually put me onto pay-as-you-go. I went the next day to Vodacom to open a new contract. They requested for my number to be ported from MTN so I could keep my number and move across to vodacom. I was told this would take between 2 to 24 hours. Again, it is 5 days since the request has been lodged, followed by numerous phone calls and an email from Vodacom to MTN and there is still no sign of my number being ported. I am extremely dissatisfied and horrified by the incompetency and lack of service.