No response for my query with Vodacom

********** lines were opened on my account. After numerous calls still there is an issue. Not all ********** lines were removed from my account and the not all credits have been passed on my account. I have been having this issue for 3 years now and no joy. I have spoken to numerous supervisors and when I explain to them the issue, they see that not all credits for the ********** lines were passed. Promises are made by them to contact me with feedback however no one calls back. This is very unprofessional. According to my recons, Vodacom owes me money and not the other way around. Is there anyone from Vodacom who can assist me directly to sort this issue out as this has gone on for far too long.