Never heard back on the thing I sent in about the broken eShop card, so I sent Bergsala an email several days ago which I only heard back on once. Anyway I finally got a replacement-card from the store and it worked. It took well over a week and Nintendo somehow managed to double not be any help in the time it took me to finally remember to bring the card with me to the store.
Anyway, Shantae: ½-genie Hero succesfully bought again and downloaded, at long last