Your best bet is the local State Workforce Agency for the State where you are employed. If you are not on H-1, this is the way to go. They will recover your salary. And, it does not cost you anything.
Here is the link to the SWA's for non H-1B workers http://www.doleta.gov/regions/reg01b...ources-SWA.cfm
H-1B and E-3 workers, go here: