That's important. No relationship is wrinkle-free, and I'd give them every chance to correct their mistake befoire going to DOT.

If the email (as described in post 9) doesn't bring satisfaction, call the CP Desk and ask to speak with the duty supervisor. Saying something like, "One of the CP Desk agents has made a mistake in my reservation, and I'd like to speak with a supervisor" should get you past the initial screening.

Then explain that you've been througn Refund and Customer Service and gotten nowwhere, that you've had a long relationship iwth US and believe you're right and would prefer to settle this in-house before going elsewhere.

Best wishes.