Hi, I was wondering if someone could help with a questions. I booked a ticket to Antigua from MSP last March. I had to fly out of another city so I cancelled the ticket and bought another one. I knew there would be a $30 fee from Orbitz and $100 fee from US Air to book a new ticket with my $721.36 credit.

I recently tried to book a new ticket for about $621. Orbitz says US Air will not allow the $100 fee to come from the original money I paid for the ticket. Basically, they're trying to charge me $230 to book a new ticket, not the $130 that my original ticket stated would be charged for changes.

Is this standard practice? Is there any way around this? Thanks in advance for any advice.