Vodacom breach of contract

Still having the same connectivity issues with VodaCON after almost 3 years. It is so bad that I can't even make a phone call to their "customer care" center without getting disconnected. This has been an ongoing issue that they refuse to fix and now that I need the Internet more than ever I am having to put up with this useless service. I will no longer be paying for this **** VodaCON. YOU HAVE LOST A LOYAL CUSTOMER!!!!!