Cheers, I'm probably just going to roll the dice. Even if it is just Y 30kg + one free 23kg, i'll still only pay 50usd for that to be 32kg. and then upto 300 for the next bag, which is still way better than QR or UL or other options. Obviously i'll argue tooth and nail (after being very polite at first) on the day.
But going to the airport is a complete waste of time - people in the middle east are not there to help you. They won't commit to anything for fear of their jobs, even if you can find someone to talk to - which is unlikely unless at RJ checkin time.