Ok let's say I have a stay booked for late October that is confirmed. But I also have a Waitlist for early October that I'm not yet sure I want to do. I don't have enough points for both. When I book the waitlist I did NOT give it permission to cancel an existing reservation if the waitlist comes through. So what happens? Does it attempt to book and fails because I don't have enough points? Or do they contact me and see if I've made up my mind yet?