They said if they didn't have enough volunteers then people would be bumped at the airport.
Changing now means its not an issue as nearer the time , we've moved so its only 17 folk they need to get sorted
with the time of the flight , if you wait and get bumped, there are few options to get to Dublin on the Friday , so you could end up with a few quid , but miss most of the weekend fannying around airports
I didn't get offered any compensation