Unfortunately, there is no rhyme or reason as to who gets pin codes and who doesn't. The only thing you can do is make sure Disney has your email and mailing address, order a vacation DVD, and maybe price out vacations on the website and save them. You can also call and ask if there is a pin attached to your name as sometimes people have pins that way, but never get notified through mail or email. Other than that, there really isn't anything more you can do since pins are randomly sent out and there's no guaranteed way to receive them.