Refund
The refunded amount corresponds to the VAT or GST paid and in which country the traveller buys goods. VAT/GST is a tax added to the cost of a product, calculated as a percentage of the products retail price. Often in Europe the ticket price includes VAT, this is less often the case in the US. As an example, if the VAT rate on a product is 20% and the ticket price is displayed as €100, including VAT, the VAT will be €16.67 (83.5 + 20% VAT = €100.). A handling fee may be charged by the service provider.
Read more about this topic: Tax-free Shopping