No, we don't charge an exchange fee if all you do is load up your card. It would be
1BTC x $600 x 0.975 = $585.
That's good, so I only loose 2.5% in total.
One more question. When we recharge the debit card, can we specify which currency the btc is converted to? For example, I buy and selling in GBP on the exchange, but I want to use the card in Europe. Can I choose EUR upon recharge, or all funds are always converted to USD?
Anyway indeed you can use the card in Europe, the funds will be electronically in USD but if you want to retire funds in a Europe ATM they will be converted at EU at the time of transaction at bank rates and you will get euros.