Interesting call today... the reservations agent said she can't apply the guest upgrades to an existing reservation over the phone. Instead she has to send a e-mail to customer care to have them apply it. That's a new one for me. I'm guessing it might be a new agent who doesn't know how to apply them, but thought I'd mention it here anyway in case anyone else has heard that one. I'm not really worried about it working out either way, unless they only apply it to the SEA-PDX segment...