How is it that the biggest Credit Bureau in SA is so ***********?

I have Settled My Markham Account in 2019 December received a settlement letter However this Account is Still Showing as Open on my Credit Profile up to date, I have Contacted Trans union on 24/02-2020 and was assured this will be resolved within 21 days and nothing has happened since.

How is it that the biggest Credit Bureau in SA is so ***********?, You Guys should be setting the standard...