Call centre terminate call without helping

For the last three weeks I tried to get an answer at Vodacom's call centre regarding an upgrade that went horribly wrong. I have called more than 10 times. Every time they start to run into difficulty helping me, the said that someone else will help me with me request and they will transfer me. They then just terminate the call. I have also asked tor other means to contact them and they then provide E-mail addresses that doesn't go through (Undelivered). It seems that there is no way that I can get an issue resolved. How do I get someone at VODACOM to help?