Hello, I have recently discovered raileurope-world.com. I am having trouble purchasing my selected tickets when it comes to the final purchase I get the following message, "We're sorry but on this website, shipping to UNITED STATES is not allowed when UNITED STATES is selected as billing country." Does anyone have any suggestions or advice they are willing to share? I have friends in Europe that I could probably send the tickets to or place as the billing address, would this be smarter? Thanks!