Originally Posted by
kenn0223
The best thing to do is have the agent email you the add/collect receipt when you make the change. When I’ve gotten them to do that it’s perfect and shows the additional fare. If not you are stuck.
I've been in the same situation several times and found the only way to get it is at the airport or via the $20/receipt method (which you can request & pay online). At the airport it's a bit tricky since you need to find someone who knows how and is willing to do it for you. But even then you won't get anything showing specifically the new charge. You'll just get something showing the full value of the ticket.
Regarding the $20 they seem to quite adamant about charring it. I haven't been able to get anything without paying it.
I'll remember in the future to be sure I get a receipt at the time of the change. I unfortunately assumed the online receipt would be updated. I wonder if I can go ahead and try the next time I'm at the airport for another flight? I'll post if I'm successful.