I hope AA is making a hAAbit of this - I checked my spreadsheets and saw I have earned no COS on some YUPs, and COS on others. I do recollect a discussion (I'm too lazy to look right now,
) on the different YUP fares - YUPP and YxxUP, so to speak, and maybe that gives the reason. Or maybe AA is just getting generous in IT's old age.
