Today, I received a fraudulent short message that needs to be cancelled due to flight failure. How can I complain?

Why don't you call again three days before departure to confirm? Call the airport if you confirm on the day of departure. If you confirm before departure, call the airline. It may be due to the deployment of airlines, or it may be a temporary adjustment and then transferred back. I have been away from the airline for a long time. I hope I can help you have a happy New Year.