Originally Posted by
ffay005
About upgrading X tickets: I remember that at least CeruelanBlue, and someone else too, have mentioned that you can upgrade those with vouchers, but not with points. CB, if you read this, could you confirm?
I can confirm - I had several X upgraded with vouchers. Very useful when there's no U availability but F bucket still available. I called the CS, explained the situation, she typed away and booked me. Also works even when there's no X anymore, but F is still available.