Customer Support can assist in recovering Blizzard Accounts if provided with necessary information.
Log in with Blizzard allows third-party sites and apps to extend the Blizzard experience and leverage Blizzard Services.
Troubleshooting steps when you can log into your account management page but not the Blizzard Battle.net App
Troubleshooting errors when trying to sign in to our forums
During periods of high login traffic, we may put you in a login queue.
Troubleshooting steps to help you connect to the Blizzard Battle.net desktop app.
Information about securing an account that is getting verification requests that they did not initiate
How to resolve being unable to log in due to this error
How to log in to the Gear Store.
Troubleshooting for error "Too many attempts" when trying to log in to the Blizzard website