I took a night school course in business start up and got the instructor's business card since he helped small business get up and going.
To make a story short, after many emails/phone calls, I hired him, paid him a retainer via check for the services and never heard from him again.
He has no real biz address since his company is based on one of those rental offices and he has a cellphone.
What is the next best course of action. Although the check amount wasn't alot -under $200. I can't shake this feeling because I don't want others to get ripped off too!

