Vodacom Blacklisting Clients

I've a problem with Vodacom. Last September I received a message that my account has been handed over to a Credit Bureau and instructed to pay an amount of R510. I paid an amount of R550 to Vodacom and I recieved a Paid-up letter, but my account was not cleared from the Credit Bureau. I called the Credit Bureau company and they sorted me out and I also recived a paid up letter from them as well, but my credit score and report has not changed till today it has been 4 months now and I'm not getting any help what so ever, please assist me.