I got the infamous "ticket booked by CC not charged" story.
Booked a Q class last July, upgraded to J with my GUP1 with a second fee. Second fee wasn't apparently charged and upgrade wasn't ticketed, despite electronic ticket showing CONFIRMED / J on the segments I had upgraded.
I received a reconciliation email today to pay. Trying to battle with the call center to understand what happened, but now, I'm scared with seat availability...