If they don't charge commission or fees then they must make money by exchange rate. First I don't want them to exchange the euros, I want to keep them, and secondly you say they use interbank rates. How do they make money then?
But thanks for the suggestion, I'll check them out
We get paid in euros by bank transfer (usually from Spain) which I direct to a currency broker we use who converts them to pounds and sends them to my UK account at the Halifax. But when I go back to Spain I convert some of these pounds back to euros to take them with me, which means I get hit...