BBDO
Were you made aware of the denied boarding compensation under the new EU rules?
If your flight was =<1500kms, then you are due 250 euros (as well as hotac and food), if >1500kms then you are in for 400 euros. I suspect that it will be the latter, but do not have route distances to hand.
Not that that makes a wasted night in a hotel any more enjoyable.