Originally Posted by
SKT-DK
Worse than economy, huh... Right...
You booked a J class seat, you got a J class seat - annoying as it may be, you have not been downgraded in that regard. Aircraft are swapped all the time on all airlines for operational reasons, and few gives advance notice of this (especially if the actual assigned seat number remains the same).
As for how long the 747s are staying, that is a good question that I think only TG knows the answer to (if they have firmly decided on it yet)
I agree with you to an extent but quite often when I book F (not always on Thai), I choose the flight based on Aircraft. As I am paying top dollar I would be peeved if I had booked an A380 only for them to substitute for a 747. It's a different (and IMHO lower) level of comfort. If on the other hand there was no mention of aircraft type when making the booking then so be it.