Children's Home Society Adoptions

I was born in vineland n.j . and my adoption was handeled through the c hs in trenton, i have sent away for my backround imformation on two seperate occasions the first time i recieved more in depth info, and it was free, the second time many years later i recieved very vaeg info, and it was simular to the previous one but in some ways diffrent and half the length . they charged me $50.00 for it and a bunch of applications for other requests. up to $400.00, I am really confused and do not know if i should believe any or all info i recieved? signed confused