My experince has been:
If your room offer says "rooms charged to your comp account" they
are ,does not seem to matter how you book your room.
But once you reach a certain level your offers say not charged to your
comp account.
However, offers mailed to you in with your coupon pamphlet & room
offers won on the kiosk are "free"
But you can charge all meals to your room & get adjuments at vip
services or by emailing a host after retuning home
M J