You advertise the price of LAX as 39 USD which using the above website converts to 24.50 UKP
No, we don't, we only advertise the price in EUR:
http://www.fsdreamteam.com/products_klax.htmlThe product cost is 27.90 EUR, plus your local VAT rate if you live in the EU. You can choose to be billed in USD or your national currency, during the buying procedure. In this case, prices might change depending on the current Euro value
Nowhere in this website we say the price it's 39 US$, right now, the US$ price is set to 39$, but it might change as explained on the KLAX web page. The price in EUR, which is the one advertised, will always stay the same.
Why are your British (and European) customers paying over the odds? Could you not use a more favourable exchange rate
Not European, since they'll always pay 27,90 EUR, which is the advertised price. Of course they'll also pay VAT at their country rate if they don't have a VAT ID, but that's obviously not money we keep, is being transfered to their countries tax offices by Esellerate directly.
In any case, the issue of exchange rates was already discussed, see here:
http://www.fsdreamteam.com/forum/index.php?topic=3412.0In any case, the UK price could be probably lowered by .50 GBP, so it would stay consistent with that 7% increase over the official interbank rate that we calculated to roughly covering both oscillations and all the costs occurring when a currency is converted into another one, as explained in that other thread.