There should have been an option in XCs to collect the final rewards. If somehow you're not getting this, I recommend sending a help ticket.
These type of events are some I really enjoy. It was something different from the usual that gets to be very mundane here. I'd like to see these rotated in more frequently. It adds a little excitement to what has basically become boring with hunt formats being the same day after day after day. Even when there is a PvP portion to hunts that gets me playing more.
You had to hit at least one of the campus parties to get the rewards. If you did then submit a help ticket because your account shows none of the drops.