Trying to resolve an account and contract problem.

I am trying to resolve account problems with them via call centre but they just cut me off or transfer me to another person it seems that nobody knows what is going on there. They do not respond with mails or calls after my calls, they don't send promised mails. I have 2 contracts with them for a couple of years but I cant get through to anybody there. I will never recommend Vodacom to anybody. By the way there cell reception is also going I don't know where.