Pokemon pearl jirachi gamestop event 2-27-10 to 3-13-10?

ok i was at gamestop today and i pre ordered pokemon heartgold AND pokemon soul silver. as well as the stategy guide. i also got this one paper that shows me how to get jirachi. i did EXACTLY what it said. i used mystery gift. i went to receive gift and choose get via wireless and i chose yes. nothing happened. so i went back and i choose get via nintendo WFC and it worked and just as i was about to get my jirachi it said i got.............................a stupid pikachu-colored pichu. HOW DO I GET MY JIRACHI??????????? theres nothign wrong with my wifi plz help me!!!!!!!!!! pull stars to whom helps me out