yes, an irony here is that they insist their "utmost priority" is the safety of their passengers and crew in the very same email that they admit the delay was due to the fact they don't keep their planes in good nick. That is, we don't owe you money because we care most about keeping you safe and this plane darnit was falling apart!

okay okay, I know that sometimes unscheduled maintenance is genuinely not the airline's fault, not a sign of an inadequate maintenance regime. But still.