All I got after entering false information was 5 pop ups and NO option to give shirt size, player name or number. My guess is its a sham. I gave the address to the federal reserve where a relative works who said they would keep an eye out for it.
I'd say dont waste your time unless you enjoy spam.
You could earn enough money to start a NFL jersey manufacturing plant in less time than it will take to delete all the spam you'll get.
As for me, I have a special spam e-mail account just for occasions like this.
For that matter I'll send you a FREE Cowboy jersey.
Shipping and handling will only be $49.95