If you have lost access to your account, this interface can help you. Of course, you need to prove that your complaint about the account is justified. Enter the requested data and follow the instructions carefully. Please understand that there is no way to gain access to your lost account if the interface cannot help you. Two other options for changing account data are available if you have a registered account.
When using the lost account interface, you can
get a new password if you lost your current password,
get your account name if you don’t remember yours
get your account back if it got hacked,
change your account email address instantly (available for registered accounts only),
request a new recovery key (available for registered accounts only).
As a first step in using the lost account interface, enter a character name in the lost account and click "Submit".