Payed for checked bags, then changed flights
I'm asking this for a friend. I've never actually paid for a checked bag so I have no idea how this works.
My friend is on an AC ticketed and marketed flight, with the first segment on UA. AC FF number on the res so no UA status (and only *S through AC so no bag fee waiver).
She checked in this morning (for her flight tomorrow morning) and prepaid to check a bag. She then got an email from AC, informing her of a travel waiver (thunderstorms in NYC) so she changed her reservation to leave later in the day tomorrow and transit a different airport.
The first flight is still on UA (though it's a different flight). The UA record locator remained the same and updated with her new flights, but her prepaid bag is gone.
Is this normal? Will she have to pay again when she checks in for her new flight? If so, will she get a refund for the checked bag on the old flight?