by Ratboy on Dec 30, 2004
A notice from Worldofwarcraft.com and the Blizzard staff:
Separately, some players received an error message when attempting to enter a valid game-card number while setting up their billing options. This issue has also been resolved. The accounts for these players have been activated with the entered game card, and these players should be able to log in and play World of Warcraft. If you experienced the error when entering your game-card number and still can't access the game, please contact our billing department at the phone number or email address listed in the account-management section for further assistance.