FNB suspends my business account *********ly

I was contacted by Unathi of FNB com symcok last yeer and asked for various documents for fica verification - why when I have been using my account successfully for the last 2 years? She said she would send me an email, but I must ignore the list in the email as she only needed 3 documents which i sent her. I sent these but two months later received an email from the same division threatening to susoend my account as not all docments had been received. I rep**** to the email, but noone bothered to get back to me. I tried calling the division, but noone bothered either answering or returning my calls. Today my account has been suspended by FNB despite being a platinum account holder and having an account with fnb for over 2 years now. I am beyond disgusted and what is more my business processes have been disturbed. This is totally unacceptable! I have clients trying to deposit in my account, what must I tell them?