We learnt that there would be a rare situation, in which a credit card may be surcharged by 1~3 Euros by their issuing banks.
We contacted with our banks and was told that such a fee would be taken by the bank who issued the credit card when the card was used in trans-region or trans-system payment, according to specific policy of issuing banks.
In payment page, please notify if you are being surcharged before click the "pay" button while using a credit card.
EO didn't and won't surcharge customers forever and has NO liability for such a bank fee. Hope your understanding.
EO after-sales team