The latest version of the TCV rules (2/03) state the following for dollar amount TCV's:

"3. This TCV document is not transferable and is only valid for the passenger named to be used toward the total purchase price of air transportation, including taxes, fees, and surcharges imposed on the air transportation. This TCV may not be combined with any other TCV(s). This TCV may be combined with a wholly unused ticket to purchase a new ticket provided the name on the TCV and the name on the wholly unused ticket are the same."

I know I've combined TCVs in the past, so either the agent didn't know this rule or the rules have been updated.

From the above, it sounds like there's a little wiggle room if you buy a ticket, cancel it, and combine the ticket's value (minus change fees) with the TCV.

Other than to say the difference between your ticket price and the value of the TCV will be issued in the form of an MCO, there's no mention of miscellaneous charge orders and whether they are combinable. Perhaps there's a set of rules I don't have.

[This message has been edited by Ole (edited Jan 04, 2004).]