Arg, I failed!
When I connect e-reader to gamecube and speak to the hostess my e-reader displays that message "Communication Failure".
I don't know what it means, maybe it's the link cable? Or it's because I use a PAL version?
EDIT: Don't work with PAL Versions but it works US version.
Does anyone know how do promo cards (2 released and 1 unreleased) work?