Vodacom Account

Vodacom claimed I owed them money when I didn't. They finally figured out it was their mistake and closed the account. The issue is that the credit bureaus still say that I'm in arrears with Vodacom. All this mess started almost three years ago and I've been trying to get my name cleared to no success. Just this morning alone, I called Vodacom and I've been transferred more than I cared to count. 6 weeks ago, I spoke to one of their consultants who claimed to have sent a letter to the credit bureaus to remove the Vodacom account from my name but the consultant has stopped replying to my emails.