Missinformation
It is not fair that you do not state very clearly - any kind of reminder/banner during the purchase or the payment - that you are only showing a final price for your country, and not for the EU countries, where -if you want to get your parcel once paid - you have to pay more taxes and the custom clearance fee. That does not depend on you, but it is not acceptable that you do not mention it clearly enough to decide if thde price is right or not for the customer.