Don't answer call centre lines

I have trying to reach Vodacom on any number of call centre lines since Friday. I have held on for a total of 2 hrs without anyone picking up. Just another example of the decaying service industry in South Africa. There appears to be absolutely zero emphasis on customer service. I hope that Vodacom pays the ultimate price and that other Network providers sit up and take notice. I had already cancelled my airtime contract in October (which they are still billing me for .. Hence me trying to get hold of them) and now I will most definitely be cancelling my data contract as well.