lol never mind, I remember now that it's impossible to change the " @chess.com" address.
Its not impossible :)
Staff can un-link the current email address thus allowing you to create a new one from your 'edit profile' page.
However, at the moment there is a problem with access for those creating new email addresses which we're trying to get fixed at the moment.
Elubas, the email issue is now fixed, did you still want to change your @chess.com email address ?
No, that's fine. I don't need to now.