Yes, you will be charged for each card transaction. If you make a purchase in another currency than euro, a currency conversion is required (and will take place automatically). Such currency conversion is executed by Mastercard or another third party, and we cannot influence the rate of such currency conversion. Consequently, we do not assume any liability for any loss you may incur due to the currency conversion.
We advise you against authorizing any card transactions without an exact amount because we will not refund such transactions.