Heres the deal, i didn't read the requirements fully and didn't realize that you gotta buy a gamecube and two games then register them to get the bonus disk i thought all i had to do was register two games.
Anyway i got a pin number card from mario party 5 and it's of no use to me so if someone has bought a gamecube and needs another pin number, just post here or pm me and ill send the number to you.