Ahh, pity the travel agent didn't point this out.
Doesn't explain why I was shunted from my selected seat.
Doesn't seem to explain why I can't buy an extra Y seat on a new booking.
Seems a strange business model to refuse an offer of thousands of dollars for an available seat (either BC or Y) because I apparently bought a "cheapy".
Having upgraded in the past, with a different airline, I must have, unknowingly, bought a "better" Y class ticket on those occasions
Anyway, expensive point plotted on my learning curve, thanks.
Last edited by zzuf; 21st Aug 2017 at 03:43.