I called early Friday morning for our June trip, and being half asleep, got the we're still closed message once, and didn't listen after that. I must have called 25 times, and probably only had to press 1 to get through, but instead thought I was just getting the recording, so I hung up.
On a whim, I decided to try from my car on the way HOME from work at about 6 p.m. When I got through, and told the CM what I wanted, he said, "I don't think there is any availability, but I'll check." He was VERY surprised that he still had available seating, and signed me up for a 9:45 PS. I'm very excited, especially since I didn't have to call again the next two mornings!