OP's cheat code may not work.
Once you are actually checked in for a flight, airline customer service will defer to the actual gate agents. This means they probably cannot help you.
The only grain of truth is if you have the app, it may offer you alternative flights in the app and you can book them.
Once you are actually checked in for a flight, airline customer service will defer to the actual gate agents. This means they probably cannot help you.
The only grain of truth is if you have the app, it may offer you alternative flights in the app and you can book them.