The problem has come to light for me because I have enough Virgin Flying Club miles(62500)to have a free Premium Economy to SFO when I come over for the Reno Air Races in September. Out of curiousity I checked what the fare should be(about1700gbp) and noticed the increaseed tax. Now we know why it is called Rip Off Britain, the gas price in the states is possibly at it's highest level, but you've still got a bit of catching up to do.