I just confirmed with the CC company that the Skandix transaction was what resulted in the fee. They said the payment was processed through Germany, altough it was in USD, over a .com website, and shipped from Michigan. So, a 5% fee was added. Being a customer in good standing, they removed the charge as a courtesey. In the future, the possibility of fees will probably steer me towards other suppliers when I need parts. I realize it's not Skandix's "fault", but I think they should warn customers about the possibility of fees, or find a way to process payments domestically. As credit card companies are reeling to extract more fees from people to make up revenue negated by the CARD act, I'd expect to see these charges more and more frequently.