We did this about 6 years ago ... we called to see if we might be able to add points even though they were not taking anyone for the waitlist. Our guide happened to be out of town, and the person we got told us emphatically "no" and then tried to, in my opinion, give us a hard sell for aulani. I re-iterated that it wouldn't help us and ended the call. I followed up a week later with our regular guide, somewhat sheepishly explaining that I had already been rejected, and our guide was on it! He told us that there was nothing currently available, but sometimes blocks become available and they allow them to be purchased by existing owners; we just had to describe what we might be looking for -- so we said we'd take as many as 125, or several smaller, and that we wanted to match our use year. About 2 months later we got a call that we could have up to 125 or we could go smaller. We were pretty happy we persevered.