What to do if the verification code received via SMS doesn't work
How to correct an email mistake when creating or updating your Battle.net account
How to resolve this error when trying to log in to Battle.net
What to do if you cannot verify your email address when you create a Battle.net account or you change your email
Information on the BLZBNTBTS00000011 error
Information about trading in Diablo III
What to do if the security code sent to your mail or SMS is not allowing you to authenticate your account
Regaining access to a Battle.net Account when the email is not accessible.
How to verify a World of Warcraft Recruit A Friend link