What to do if the website returns "Connection Error" when adding a phone number
Information on Phone Number Not Eligible for Callback error
How to resolve this error when adding a phone number to your Blizzard account
Unable to place an order with error "Your credit card information is not valid"
What to do if you receive this error when adding your phone number to your Blizzard account
Information on error BLZ51901023
Your login information was incorrect. Please try again.
Information about this error when adding a phone number or an Authenticator to a Blizzard account.
Information about password restrictions and requirements for Blizzard accounts
Information regarding steps you can take if your email address is already in use on an account.