Question concerning a multiple partner award. I have a phl-bos-nrt-bkk (OJ)-hkt-doh-jfk award booked for January. The award was booked back in April for 200k avios when JAL taxes were fairly low. I unfortunately need to cancel the return leg (after NRT) because the dates don’t work for me anymore. I understand that the amount of avios will be recalculated, but how about the taxes? Will the whole award be repriced as well and will be on the hook for the new crazy expensive carrier charges (and therefore paying way more) for this modified multiple partner award?

thanks for the insight.