Confus and flarmip - Thanks for the feedback

flarmip - As you say, a higher fare class might mean a better cabin but would not help with regards to the AVIOS situation, unfortunately.

I would probably fight if they do not award original Avios in such a case as it is a substantial part of the original contract - 50k Avios vs 9k Avios.
I think we need to wait until we see the first evidence.