Ask the airport ticket desk for involuntary rerouting
Fully resolvedAirport desk
[FlightFix fictional development data — not a real passenger report] Instead of calling the general support line, we went directly to the airport ticket desk and asked to be rebooked under "involuntary rerouting" rules. This got us on the next available flight the same day, at no cost, without waiting for a phone queue.
Resolved in 180 min
Related passenger experience
ResolvedFlight cancelled the morning of departure, discovered only at check-in.