Board Thread:Event Discussion/@comment-99.23.174.47-20130911081036/@comment-12213288-20130911155539

For defeating Fallen Virgo, every member in your guild will receive the same rewards. So rest assured, even if you are re-charging, sleep, or do whatever it is that requires you to be away from game, you WILL/SHOULD receive the conquest level rewards. If you receive nothing, contact Zynga.

Different rules applied to Virgo or some people call it Virgo Calm. You will have a chance to get her ONLY when you are participating in the fight. And it's still a speculation about what determines the right or luck to claim Virgo Calm after defeating her.