Originally Posted by
inpd
Damn! Just bought $5000 worth of tickets at great prices but UA.com didn't by default use my Mileage Plus CC but another.
I want to change the payment to the Mileage Plus CC to get the miles and travel insurance.
It's been 12 hours. Is there anyway to change the credit card the flights were booked on without cancelling the flights.
Fee free cancelations within 24 hours.
So cancel and rebook. Actually, rebook first to ensure you get the fares, then cancel the initial bookings. As long as the fare is still there, it's by far the easiest way.
You can try and call, however, it's likely a long argument, and a losing one for you.