All foreign customers having a Visa or MasterCard will be able to pay through PayPlug. You won't pay extra fees for these payments.
If you are using the "Payment Request by SMS" function with a foreign customer, make sure to add the Country Code Number preceded by "00" or "+" before the phone number.
Some foreign banks ask their customer to call them to authorize an important payment (several hundreds euros). If the transaction fails, you can advise your customer to contact his bank to validate the payment.