FNB has sabotaged my entire business

Since October last year I have been been going through an ordeal over and over with FNB where my account keeps getting blocked and unblocked due to 'failure to provide FICA docs' - although all my documents have been supp**** when the account was opened, what FNB wants is resolutions of directors and mandates. However my company only has ONE director and FNB clearly does not understand company law, as no resolutions or mandates EXIST when there is only one person who is a director of a company. I have told FNB this last year, my account was unblocked and then now again it is happening again. Despite numerous phone calls and promises from FNB my account is BLOCKED and I cannot transact or PAY SALARIES. I am so sick of going through this over and over. The branch treats me terrribly. Noone at headoffice knows what I am talking about. FNB IS sabotaging my business. I am now going straight to carte blanche and instigating legal action against FNB as maybe then someone will help me, FNB you are preventing a small business from operating and preventing myself and my employees now from not only conducting business but from earning an INCOME due to your shocking service and incompetency.