i had a contract with a company for $1,880.00 for a retainer wall and a down payment of $940.00 before the project. I gave him the down payment and upon his trust because i was leaving out of town and didn't know when i was coming back. i finish paying him the remaing of the money and he assure me that when i got back home the project would be finish. but it wasn't, I've tried numerous times to reach him. by phone calls and emails, being that the only thing on his business card is a post office address. yet he has never responded to any of my calls, post office request or emails. how do i reach him or find his address to send a certified letter and Will i be able to take him to court for not finishing the job even though there was a contract for the down payment and remaining money after the project was finish?