is this a square agency.......fashion or nude agency...porno?
either way NEVER pay for that shit.......
if its a fashion agency....ask for their state model license....they cant produce this they are a scam!!!! report them to the BBS and your state attny generals office.
if its porn agencies you want well there is...........
http://www.thefloatingworld.com/thebiz.html
and even with them do your homework!!!!