US Air wants to steal your credit by making you pay additional fees for bookings and not giving you back the balance of any credit once you rebook. I had a $293 credit and booked a new fare for $114.00. They said I would have to pay an additional $150.00 for my new ticket and I would lose the rest of my $179.00 credit. Shame on them...I will never purchase another ticket from them now that Southwest gives me a choice here in Philadelphia. read full review »