How to permanently delete an account.
Information about US sales taxes for online purchases
How to remove a billing profile
What to do if you receive this error when adding your phone number to your Blizzard account
Customer Support can assist in recovering Blizzard Accounts if provided with necessary information.
Information on the Blizzard Authenticator
Your login information was incorrect. Please try again.
How to reinstall the mobile Authenticator, keeping the same serial number
Out-of-date drivers and operating systems can cause a variety of issues, and are one of the first things to check when a game is having problems.
Blizzard servers could not be reached or may be offline.