Due to a recent audit with U.K. tax authorities, United needs to change the way we collect the Air Passenger Duty tax (APD) out of the U.K. In the past, pass travelers were charged the Economy cabin APD tax regardless of the cabin for which they listed.  Effective immediately, United is required to charge the appropriate APD tax in the cabin in which you list. If you use payroll deduction, you will be properly charged after travel takes place, based on the cabin in which you flew.  If you prepaid with a credit card for your travel and listed for a premium cabin, but were cleared in economy, you will need to request a refund of the difference in APD tax by going to the United.com Refund policies page and specify that you paid APD tax for the premium cabin but were accommodated in Economy. Please be sure you submit the ticket number for the ticket used to depart from the U.K., and not connecting ticket numbers. Also as previously communicated, we are no longer able to issue transit refunds if your inbound flight to the U.K. was not on the same ticket as your connecting United flight.

For more details on the APD tax, visit the U.K. APD tax page at https://www.gov.uk/transport/air-passenger-duty.