If you can provide us with specific account information, for example, the game you have played, your server, the nick name of your character, details of your recharge, the specific time or date of the registration of your account and so on, then you can change your security email address and use your new email address to retrieve your password. If you can’t provide us with correct information, then the account can not be proved to be yours. Accordingly, you can not change your security email address or password.