Paid up letter

The account is closed and no one is able to give me a paid up letter it still reflects on the bureau that I am in arrears but the account is closed, I closed the account in December 2023 it has been more than 60 days according to the bureau accounts get updated every 60 days but nothing has been updated. I have emailed. phoned. went to the bank directly no joy on getting a paid up letter as i logged a complaint with the bureau they want a paid up letter which i am not able to provide as the bank don't want to give me one.