Vodacom useless customer care

I cancelled a long standing contract because the rates were not in line with other service providers. I moved the number in question to a prepaid number and then attempted to port to MTN. For 3 days I failed to port the number successfully. I then contacted the customer service department . All they could do was transfer me from legal to cancellations to porting. No joy. Eventually I was told the back office needs to remove a code. And it will take a further 40 hours. I refused to accept that. I called the customer service department to complain about the delay and requested the most senior manager to call me because I refuse to go through the entire cancellations process yet again. The consultant said someone would call me on 30 minutes I'm still waiting . Vodacom has the worst customer service when it comes to exiting. I will be cancelling all my other contracts as well as soon as they expire.