On these matter I would recommend you to find the employee from that company or there might be your freinds or any relatives on such company follow their instruction because I am also having the same problem. The company on which I joined said me the same thing of free acomodation and monthly $500.00 but they are unable to get the project yet and we are already in bench for 3 mths. So whoever, wanna join those companies it would be better for them if they find their freinds hanging company and asked them about the actual facts.