I see you are currently online, so I assume you got this working
Just for anyone else who has a similar issue, in-game when you go to log in there is a "Request Details" button, which will take you to this page
, which you can use to recover your password and/or key.
It will send you an email, but it might go to Junk/Spam rather than the Inbox, so you might need to check there and mark it as Not Junk/Spam.
Note: both the username and password are case-sensitive.