Capital One Small Business Checking!

I started my business and opened a small business checking account with Capital One. I have been with the bank for three months and and they slapped me with the "NSF" fees three times already. They put all checks that I deposit on hold for a week!

I need to use the money to buy supplies and thinking I have funds in my account I write checks against it. Next thing I know I have NSF fees and I a lost customer because I could not deliver the service. Even when I deposit checks of Capital One customers they put them on this hold! Unbelievable!