Airline: American
Flight: N/A
Class: N/A
Incident: Didn't fly, but they accidentally deducted a big trip trip twice from my account, causing me to not have enough points for another reservation that they attempted to ticket.
Compensation: 6,000 bonus miles + reversal of mistake
I know it sounds petty, but I've had enough issues with American that they've denied compensation for that I don't feel bad for them one bit.