WoW Game Card

[MiRai]

I believe you can use a single card for "x" number of accounts.

wow never knew that..i always used new differant ones on 4 of mine and then have a main sub..thats cool to know..

I'm pretty sure Ualaa was speaking about credit cards and not game cards being used multiple times.
It's true and seems to be bank dependent, though. If you're trying to reactive all your accounts at the same
time using the same credit card your bank may have flagged it and I would call your bank prior to waiting in
queue on the phone for a Blizzard rep to tell you to call your bank.