Originally Posted by Humaniod
I booked a M fare over a week ago and have not yet been upgraded. I called SMS and was told that the airport held all FC seats. As of yesterday there are 12 of the 16 seats still open. What gives? Is there a good reason for this to happen?

I thought you were automatically upgraded at time of booking on M, B and Y fares.
PMU upgrade come out of G class with lower avaiability than V class for segment upgrades (elites only). You might want to explore your non-PMU upgrade option and perhaps the upgrade is avaiable that way.
(Assuming from 16 seats up front that it is a domestic flight).