Cell C Customer Service is non-existing

I have had the most terrible experience with Cell C. Nevermind the fact that you need to go through many security checks with every department they put you through to (and they put you through to at least 3 departments before someone drops your call and you have to start from the beginning) the call centre is of no help at all. I have been trying to cancel my Cell C contract ((I have been using a Vodacom (brilliant company) SIM since February). I paid the cancellation fee (which I don't know why I have to do as I was on a month to month contract with Cell C), sent the proof of payment and then nothing until I received another invoice this morning . Spent 2 hours on the phone just to hear it was never cancelled, I need to pay another cancellation fee and wait another 30 days before it will be processed. The client service is SHOCKING. Nobody is prepared to give you a CEO office Complaints department number- but very happy to be useless in their jobs and just proceed in taking my money.