Cell C - Where is your customer service?

I have spent this morning trying to cancel a Cell C contract that expires in a months time. If you don't cancel it on the correct date, they charge you for another month. I've got through to the call center 6 times this morning and every time I have to go through the security stage etc, only to find that when I'm transferred to the cancellation department, I'm told buy a machine that the number doesn't exist. You can bet if I wanted a new contract there would be 50 people to help me, but no one to help with a cancellation. Same on you Cell C