LEGAL DEPARTMENT FNB

I have settled my credit card account and received a paid up letter in March 2024. To date FNB card division has not updated my status on Experian since December 2023. When I phoned Fnb I had to email the card division and legal department. They tell me the legal department does not have a phone number only via email. This is unacceptable and unprofessional. How do I resolve this problem if I can't speak to anyone. It's reflecting poorly on my credit scoring due their incompetence to update the system. Why does it take sooooooo long.