Friend Invitation fails

To whom it may concern,

I have tried to invite 2 new Users to bitbucket. They see my invitation, but it asks for username and password. They dont have a user yet.

If they select forgot password, the system tells them that the usermame / email address is unknown.

The Users:

steven.bowman@lealesolutins.com
umair@clamsandcrabs.com

I removed them and tried to resend the invitation, it tells me that there is already a invitation pending