Arne, it must be possible for you to buy British pounds from your bank, or perhaps from a travel agent. That way you are posting British pounds to your supplier who will pay it into his own bank without incurring any charges. Any charges involved will be taken into account by your own bank or travel agent when they charge you in Euros for the amount of British pounds you wish to buy. If you wished to send Euros to your supplier then he would incur charges from his own bank to convert them to pounds.