What to do if you cannot verify your email address when you create a Battle.net account or you change your email
How to swap email addresses between two accounts
Information regarding steps you can take if your email address is already in use on an account.
How to update the email for Parental Controls.
What to do if you cannot log in after you changed your password
Regaining access to a Battle.net Account when the email is not accessible.
How to correct an email mistake when creating or updating your Battle.net account
How to change or update a Battle.net account email address.
How to modify your emails for to allow important Blizzard and Battle.net messages to go to your email inbox
What to do if you receive the error "We Can't Find That Battle.net Account" when logging into Battle.net