FNB FICA abuse, learn how to work with customers FNB

I am so tired of FNB Fica`s unprofessionalism. After 20 years with FNB I give up. Once again you want me to provide information which you already have. I did what FNB asked by going onto my online banking to check the information, some of it is wrong but I can't change it online as you said I should, so you say a consultant will call me, still waiting. This was on 8/12/2022. Now you send another email, 24/12/2022, basically threatening me you will freeze the account if I don't comply, meanwhile I did what you ask, and the online banking won't accept changes. The way FNB treats clients is short of abuse.