Cell C dragging their feet

After waiting nearly 4 weeks for Cell C to get back to me regarding an account that was erroneously (**********ly) blacklisted with credit bureaus over 21 months ago, I finally got a response from Derick at Cell C on the 13th of November, stating that they will fix the account. This morning (18th) I get another phone call from him stating that the account has now been fixed and removed, but I will have to wait another 10 working days for this to reflect with the credit bureaus. I find this unacceptable - they made the mistake, they were suppose to fix it almost two years ago, but now I have to wait for almost another two weeks for the fix to reflect. They are very quick to drag your credit rating down, but very slow to fix their messes.

Derick, please give me a call - you have my number.