Paid up letter/Update info with credit burea

I have paid up my credit card with Nedbank end of July 2015,I called their call center they said yes they have received the money,I requested a paid up letter on 05 August 2015,which they say it will take 21 days to get to me,I also asked them to also update my information with the credit bureau,that has not been done till to date.I called their call call center again on Thursday03-09-2015 last week only to find out that the request for the letter has not been done.<br> <br> I feel this is unfair its been a month already but the they have not updated my information with credit bureau,i have not received my paid up letter.<br> <br> This companies are so quick at blacklisting us but very slow at removing our names from credit bureau.<br> <br> Please help.<br> <br> Regards<br> Smangele<br> <br> <br> <br>