Account not updated as paid up

I requested Experian to update an account on my credit profile as paid up and have not received any response. The Paid up letter was sent and the creditor confirmed that they have notified the credit bureau as well. I fail to understand how experian constantly takes this long to update a consumer profile which severly impacts a candidates job application as well due to credit reports not being updated.

I humbly request that the account I requested to be closed/paid up is actioned. Transunion never takes this long.