My U.S. to HND flight in economy is less than a week away, but there does not seem to be any "bid upgrade" option when I log into the reservation through "Manage Booking" on the website. ExpertFlyer confirms premium economy seats are available. Ticket is on 131 stock, so should be eligible, as far as I'm aware. Am I just too early, or is it the case that JAL doesn't intend to open bidding for this flight?