To update your e-mail address, please follow the below steps.
Go to the CardRoom.com Lobby
Select the gray "Requests" drop-down from the menu at the top left
Select "Change e-mail" and enter your password and new e-mail address
Click "Validate e-mail"
* Note: You will need to validate your
e-mail address by entering the six digit confirmation code that will be
automatically sent to your e-mail address when you click "Validate e-mail." To
validate your e-mail, please go to your e-mail account you listed, open the
e-mail you should have received, and follow the instructions detailed within.