When an administrator invites you to join his team, an invite will be sent to your email address with a direct link. 

By clicking on "Join Team" you will be directly forwarded to the teams board. 

If the link just takes you to your already created account, please do the following:
1. Logout from your current Userbrain account.
2. Click again on "Join Team" button in the invite sent to your email

All set! Any question or experiencing any other problems? Drop us a line support@userbrain.com