Originally Posted by
lixiaojuventus
Thanks for your reply! This is indeed a ticket originating from KHH, not starting from elsewhere. Your reply fits my understanding that, as long as B/R fare classes are available on the respective flight (of course, EF does not show Taiwan POS, as you mentioned.), I should not pay any fare difference. I will probably HUCA and see what I get.
Do note that although your KHH-HKG and HKG-MEL flights have different booking classes, they are still married segments, so you need to look for married segments' availability. If you cannot get B+R on CX's website, likely it is not available.