There seems to be a lot of misinformation in this thread. The bottom line is that the DOT requires that U.S.
and foreign air carriers include
specific information about first and second bag charges on e-ticket confirmations, taking into account a passenger's status. This applies to U.S.
and foreign air carriers that advertise or sell air transportation in the United States (regardless of route) and has the force of U.S. law. Therefore, the
only relevant information is that which is included on the e-ticket receipt, period!
The whole point of the DOT rule is that people know
exactly how much they will pay for their first and second bag for their entire journey, so that there are no surprises at the airport.
An airline (U.S. or foreign) that fails to respect the specific pricing on the e-ticket receipt is violation of U.S. law, and a chargeback and DOT complaint are in order. Reference:
Enhancing Airline Passenger Protections, A Rule by the Transportation Department on 04/25/2011