As an admin of the site, it's good to know that some folks are having troubles with the registration form not functioning correctly. Will you both try registering using an Incognito Window (Chrome) or Private Window (Firefox) - with ad-blockers deactivated - just to see if registration goes through. If it does, then you should be able to use those credentials to log in using your regular browser panes after that. As a final resort, I could set up an account for each of you, pass along the credentials, and then you log in and change the password to whatever you want along with account details/etc. Keep me posted.