Refuse to update my transunion record

I am very disappointed in Absa. Recently I made payment on my credit card, large amount and unfortunately it was done after month end. Because it was done after month end Absa cannot send the positive payment through to Transunion. The feedback they gave me was that they have to pay when updates are given through and cannot do it for individual. so i must wait until month end. I explained to them that i need it to be updated asap since i need to apply for home loan. Then they said then i can call transunion and make the update myself But they wont be able to help. I ask if i should not be provided with official letter and they advised me i can just use my statement. I think transunion would need official letter from absa to indicate amount paid Then why am i premium acc holder with high bank charges.

i had to beg them for feedback could not even give me a call to tell me that they cant update my info with transunion.... Really disappointed