Still being charged after cancellation. Impossible to contact.

Vodacom is absolutely useless. There is absolutely no way to contact anyone regarding cancellations. When phoning you get told to send an email to the cancellation department, who take forever to respond. I have to contact them every day for a week before I got a response. Once I finally managed to get the forms, I made payment and sent the forms back over a week ago with no response. Now, I am still being debited the monthly fee, and it is impossible to contact anyone.