Mercantile Bank: Service Disgusting

I am very unhappy with this bank. I opened a business account in December last year. I waited 6 months for my card to be delivered. After it has been eventually been delivered, I was told that my account is deactivated. When I complained about it, I was told that I need to resubmit FICA documents. When I submitted the FICA documents I was told that my account is now closed. Then I requested that the account be reactivated I was told the lady has already spoken to me? Seriously!!!!!!!!!!!! So what now. Mercantile please employ competent people in your bank. They do not care about customer service. They do not care whether your institution is being reported to Banking Ombudsman either. I have dealt with DUDU, and three other employees.