business account closed

MY BUSINESS ACCOUNT WAS ON MINUS DUE TO BUSINESS BEING LOW ONLY FOR A COUPLE OF WEEKS. JUST WHEN WE MADE A BREAK WE GOT A PROJECT FOR MORE THAN A MILLION ONLY TO DISCOVER THAT OUR BANK ACCOUNT HAS BEEN CLOSED CLOSED A MONTH AGO WITHOUT BEING NOTIFIED AT ALL THIS IS UNFAIR AND A GREAT INCONVENIENCE , NOW AS OUR CLIENT IS GOVT, WE HAVE TO OPEN ANOTHER BANK ACCOUNT WITH ANOTHER BANK RE SUBMIT OUR INVOICE WHICH IS GOING TO BE ANOTHER 3 MONTHS WAITING FOR OUR PAYMENT AGAIN --THANKS TO NEDBANK