After completing the 3-day calendar for the second time - I went to being the third one, click on 1 tile and presto I was done with it a third time. Got the payout and charger but lost 24 tiles of $$$ and XP. What a rip off? Probably lost anywhere from 3-4 levels.
It's a problem with challenges... I've had it happen in normal challenges many times, you click "play again" & the next challenge is imediatly completed! a few ppl had it happen on the 3 day calendar on myspace, i had it happen on Kong after my first calendar clicked "play again" & the 2nd one instantly finished. BUGS/ISSUES thread..... http://forums.kanoapps.com/showthread.php?9645-Challenges
