I noticed something weird on my reservation at Ko Olina also (I booked the JW, not sure if you booked that one or the beach club). I booked it and already had the 180k points deducted, but when I look at the reservation detail, it shows total points for stay 210k. I hope that doesn't mean I will need more points before i go - I am planning to call Marriott later so I will post what I find out.