Do not keep retrying a large failed payment. Check amount, fee, bank approval, and passenger details, then split bookings or use the other booking channel if timing matters.
Do not assume all passengers must be paid in one transaction.
Do not ignore passport detail errors just to secure seats.
Traveler experience
Watch and read real traveler context
These videos and Reddit threads are related to this guide's scenario. Use them
as practical context, not as a guarantee that the same steps will work for every
card, device, passport, hotel, route, or merchant.