We changed our itinerary for next Spring and will be returning from Berlin rather than CDG. We are using the companion pass and had already paid taxes. Unfortunately, at this time there is no good award flight from TXL to LHR so I just booked the transatlantic segment. I figured I would wait to see if two seats open on a flight early that day that will allow a connection and, if not, would simply buy the one-way tickets from TXL to LHR. When the agent recomputed the ticket, I now had to pay the higher amount on the return due to my homebound flight now originating from Heathrow. Fine, I get that. But I asked if we could now purchase the one-way ticket - about the same per person as the extra taxes - and she said it could not be done - since the award ticket originates in London, I have to pay those taxes. Seems nuts to me but I have no desire to spend another hour on the phone if you all know that she is right. I would have thought that paid tickets connecting to award tickets with the same passengers on the same date would be enough to prove where the return actually originated. Any ideas? Many thanks.