A little confused about my rights for returning to work?

You might want to look more into the company policy for this sort of thing. Or contact someone from the labor website. Some jobs don't have the same sort of rights for temporary employees as they do for their regular employees. I would find this out before you say something. If you go in there and start complaining or filing complaints then all they have to do is say that they no longer have the budge for temporary positions and you will have to be let go. Just make sure you know as much as you can before making any waves.