I paid you please update my credit record

I settled all the loan accounts i had with FNB on the 19 March 2015. in April i called them and made aware that they havent updated the closing balance on my accounts with them. they sent me a paid up letter and promised me they will sent a request to transunion for the update. Its June my credit record has not been updated. i called on the 12 June friday and i was told that i should send the emails again with the copy of my credit report, i did again and i am being told that a supervisor Getrude is too busy to get back to me, i should call them back again in 48 nworking hours, after waiting for 2 Months. this is unacceptible and i dont see why i should beg a company to update my credit record when i have settled their accounts.