A British Airways passenger has expressed outrage after losing £9,000 due to the airline's strict 'no-show' policy. The passenger, who planned a 60th birthday trip from Glasgow, Scotland, to Mexico City, opted for an overnight train to Heathrow to avoid potential delays from storms. Upon arrival at security, they were informed that their tickets were invalid because three family members did not take the initial flight from Glasgow. This left the family with a difficult choice: send their son alone to Mexico or purchase new tickets. Ultimately, they maxed out their credit cards to buy new flights, costing them £9,000. British Airways stated that passengers must confirm they understand the conditions of carriage when booking, which include the stipulation that missing a flight leg cancels all subsequent flights. Despite the family's situation, BA maintained that the fare paid is for specific flights and cannot be used out of sequence. This incident raises concerns about how airlines communicate their policies to customers.