Standard (poor) Bank hampering small businesses growth

Standard bank first removed all my personal money (not borrowed) from my business account (small business) and then closed / froze my account. Without even one notification that they have a problem. When I started enquiring it turned out it was because they wanted a proof of address. I can understand that they need it, but I don't understand them doing all this without proper notification or communication. I could not pay my employees their February salaries. How do I explain that to their children?