Difference in reward surcharge UK vs. US

Hi everyone,
I am sure I remember seeing a thread on this a while back, but cannot locate it now and do not remember it being resolved, so apologies if I am duplicating! ii)
When booking an UC return reward flight LHR to JFK, the tax/surcharge fee is GBP 505.55
When booking an UC return reward flight JFK to LHR, the tax/surcharge fee is USD 1,116.70, or GBP 846.42 at today's exchange rate.
Anyone know why US flying club members have to pay a premium 60% higher than UK flying club members?! Seems very unfair to us folk on this side of the pond!
!
I am sure I remember seeing a thread on this a while back, but cannot locate it now and do not remember it being resolved, so apologies if I am duplicating! ii)
When booking an UC return reward flight LHR to JFK, the tax/surcharge fee is GBP 505.55
When booking an UC return reward flight JFK to LHR, the tax/surcharge fee is USD 1,116.70, or GBP 846.42 at today's exchange rate.
Anyone know why US flying club members have to pay a premium 60% higher than UK flying club members?! Seems very unfair to us folk on this side of the pond!
