How to authenticate a buddy's round

I recently joined golfshake, and after adding a buddy of mine, received an email from golfshake with the title: New Round Authentication @ golfshake.com.

The message read:

Your have received a new request to authenticate a round @ golfshake.com.
From : *******
Log on now to activate this round at http://www.golfshake.com/round/roundList.php?list=auth

When clicking through I get to my round list page, but can't see anywhere where I can authenticate my buddy's round.

Please advise.