Robert Woods Construction review: Bad employer

I and my friend worked for the company Robert Woods Construction. We worked 3 weeks, and the owner promised to pay in the end of the month. But it was lie, because he gave only empty promises and no money. Now he tries not to communicate with us, because we call him every day. He owed about $500 per person, so in total it was $1, 000. I wonder if there are other people, who had the same experience. Can you provide any good piece of advice?