Correct me if im wrong.
Wasn't there an EU law that was recently put into place. And this law states that refreshments must be given in any delay 3hrs+ and more so 5hrs+ etc.
If vouchers are issued before this time then count yourselves lucky! An airline that chooses not to issues vouchers until 3hrs is well within their rights.
If your flight pushed back 2.55hrs after departure time then your not entitled. If it was 3.01hrs then you have a case.
All Airlines suffer delays, big deal, it doesnt mean that an airline that has recently has bad press needs to be highlighted and given more bad press.