To change your account name, please go to Settings > Settings > Change User Name. Once your name has been changed, your old name will remain unavailable for use for a period of 180 days.
Please note that the following restrictions apply:
You can only change your name once every 14 days.
If you change your name to something that violates the rules you will be forced to change your name again and further action may be taken against your account.
Changing your game name will not automatically change the name you use on the external forum. If you wish to change your forum name, you need to submit a support ticket. After the 180 day cool-down period, you may be forced to change your forum name if another player registers using your old name.
change your password from the login page.