@Monti *******
you are right. I missed the information about the contract. Then its a lot worse situation and I would tell the owner to immediately provide all the documets as Im going to report to the immigration where Im staying or to give me back the deposit and move out (both options are unlikely to happen) and after he refuses, I would go to the immigration to ask them what to do. All what Ive said now may finally resolve the problem but the chances are like
****
to resolve it on time.
So summing up: you need to find another place as quickly as possible.
To talk with the owner it would be the best to ask a Thai person to do the talking.