NO SERVICE from Telkom

I have been trying to cancel my phone line for over 2 weeks now but I cannot get hold of anyone. I have tried to call but no one answers. I then tried a different department and they answered but not even the woman in the call centre could get through to the cancellations department! I then tried to get hold of them via twitter and was given an email address to try but have had no response from there either. I was told via twitter that they require a 30 day notice period but that is ridiculous now that I have been tring to get hold of them for 2 weeks already!!!! This is honestly the worst service ever!