This has probably been discussed before - sorry to bring it up again. I am "flight segment waitlisted" three consecutive flights for upgrades with my air miles on the website. My confirmation also indicates three flights with my coach seat selections. My question is that in first class for two flights there are seats available but I am not being permitted to select them. I guess I just wanted to know if I am correct in assuming that these seats are being held until the very last for a paying customer. Or should I be doing some calling. Thank you.