Hi
After reading the threads above I am afraid I need to ask some dumb questions:
My plan is:
Outbound YYZ - TPE - ICN (J available)
Inbound: PVG - TPE (J available)
TPE - YYZ (Y available)
But for some reason, I can see all 3 of the above routes available but I cannot finalize the booking.
Is it because I have J + Y mixed cabin in one way so the website won't show up anything? Can I book through phone call to bypass this issue?

By reading the threads above if I paid the full amount of J class points (95000) then I should get a free 'upgrade' to J for any seg of my bookings correct? (routing and carrier remain unchanged only cabin)
And if my outbound is already taken, for example:

Outbound 4.9 (flown)
Inbound: 4.26
From what I learned BR usually releases tickets 1 week ago, and can I change my ticket to J class? not within 96 hours of course.

thanks for the advice.