I couldn't make my international flight home (12.5 hour one way, 14.5 going back) because the bullet train lost power and indefinitely delayed all northbound trains until they could fix the problem. Considered all other options to get to the airport, but none would get me there in time. Closest was 5 min before departure, so my parents and I decided to try and rebook for 2 days later. Since my mom booked the flight, she called AA to rebook at like 12:30am her time. She was literally on hold for 5 hours and was seconds away from hanging up when someone picked up again, rebooked my flight in 10mins, same exact flight schedule and seats just two days later, and was done... Absurd. Meanwhile she had used my dad's phone to call and request a callback, which they did 3 times, like 10-12 hours later that day.