I have paid more than it is shown on your invoice (PayPal/Bank fees)
Your invoice shows the ticket price and online booking fees. Depending on the payment gateway there are bank charges. These have nothing to do with 12go or your ticket, they come with the payment process. They can not be refunded unless we were not able to provide the ticket you asked for. Additionally there might be charges from your bank for currency exchange that depends on your bank and we neither know about it nor can we predict if and how much your bank will charge you for that.