Vodacom not updating credit record

I have discovered that my Vodacom profile still reflect as OPEN on my credit profile after asking them to close this paid-up account on Credit Bureaus. This has always been affecting my credit status and score. My credit score has dropped as a results. And the creditors still think that I still have this account with them. Please update it to CLOSE. It is unacceptable that my credit record does not reflect that my account had been paid in full.