How to ruin Christmas 101

The day before my flight I got an sms stating there was a delay. We called to confirm & they confirmed there was no delay. We even went online to Check flight schedules in the day of the flight. On arriving at the airport I was told there was a delay. I said I could not be delayed & was redirected to someone who could help. After being sent from pillar to post I was told they could not help. 2 Mango staff had apparently misinformed me and they could only have helped if I was on flight 151 despite Patricia saying they'd do \whatever they could". Who at Mango is going to pay for my ruined Christmas dinner"