If someone changed the email address on your account, or if you can't remember what it was, we can send you a text to recover your account.
Information about this error message and troubleshooting steps
Troubleshooting errors when trying to sign in to our forums
How to resolve the error message "We can’t process this code at this time"
Information on error BLZBNTAGT000009D3
What to do if you cannot log in after you changed your password
What to do if you cannot change the email or phone number that shows on the login screen because the field is greyed out
How to resolve being unable to log in due to this error
Unable to install Battle.net Application after downloading from the website.
Troubleshooting steps to help you connect to Diablo III