FNB PRIVATE CLIENTS POOR SERVICE

I have had the worse experience with FNB and how they delay in resolving enquiries. I am an FNB Private Client and what happened is that I found out that FNB listed me of Credit Bureau but the problem is the account they listed cannot be found. I called the Private suite and the told me they cannot see such account under my list of accounts not either the past accounts. I called my private banker she also said she can see such an account in my name. So I called Credit Bureau and they said FNB must either issue me with a letter of removal or they can directly remove my name from credit listing. I enquired about this a week ago, and still today (28.06.23) the issue has not been resolved. I asked the private banker what's the turn around time to expect a response she says she doesn't know, she has escalated the matter but she doesn't know how long it will take and she cannot interfere at this stage I must wait for a call from their investigators. So I am seating right now, frustrated not knowing when I will get response. This is affecting me so much, I am in a process of applying for something and because of this my application cannot me approved. FNB is costing me and they have no sense of urgency or even care about their customers. I am so so disappointed.