My wife and I have LOWE4 reservations early November including a segment BKK-->LHR. I'm OW ruby (with QF). I have been discussing upgrading to WT+ but have been waitlisted on BA10. It seems there are a reasonable number of seats available SYD->LHR according to a friendly website but nothing joining at BKK.
Alas xOWEx tickets in Australia need to be purchased well ahead of time. And while the seat may well become available in the end, if confirmed after my ticket has been issued it will require a ticket re-issue charge, adding about 15% ($AU75 @) to the cost of the upgrade.
Any similar experience from other OW flyers?
If so, the outcome?