Can you sue a vendor for giving financial information to your competitor?

I used to own a small mattress company and one of my vendors gave information regarding my account with them to a competitor of mine. Is this grounds for a lawsuit? If so, what are the grounds and how much can I sue for? Please only serious answers. I don't need morality speeches about frivolous law suits and what not because this information ultimately led to the demise of my business. Thanks in advance for the answers