Originally Posted by
frb98mf
DUB-PHL equipment change from 3-class to 2-class A330 - involuntary downgrade from Premium Econ to Y.
...
Even $500 total really doesn't cut it as far as I'm concerned. The (also very embarrassed and sympathetic) check-in agent at DUB thought $1000 in flight credit would be appropriate (me too) but obviously was not in a position to offer it.
Whats the price difference between PE (what you paid) and Y (what you received)? They definitely owe you that fare difference. Unsure if they owe you anything else. If they offered me $500 plus the fare difference, I'd take it gladly.