I've spent the last 5hrs. trying to buy TGV tkts from CDG to Bordeaux all is great until I try to pay with a non-chipped US credit card. I get a msg. saying my payment is rejected. Can we no longer purchase tkts via this site? Rail Europe is so much more money & I don't have the same ticket options I can get at TGV-europe.com. Really frustrating. Can anyone help?