Through messaging on our website, we do our best to communicate to international customers that (most) gift cards are valid for use in the U.S. only. We display this specific message on several screens throughout the purchase process.
Per our Terms of Service, gift cards are not refundable. However, they are transferrable. Our best suggestion is for you to generate a PDF of the gift card -- and regift it to a friend in the U.S.
We are sorry for any inconvenience and we appreciate the understanding!