Is freebiejeebies legit, free?

well im 14, so i dont have a credit card, or money. so is freebie jeebies legit. do ihave to pay for other stuff to get a mac, will i get crazy emails, and a bunch of advertisements in the mail, have to subscribe, any thing that i can get into trouble with, is it so easy a 14 year old can do it. give me a detailed answer