Can I purchase a Bahncard at Frankfurt airport? Or should I just purchase a Bahncard online before I leave the U.S. I will be flying to Germany on 26 May, should it should be enough time for DB to mail me my card if I have to buy online. Also, when I leave Germany I would like to give the card to my friend to use. I will assume that if I order online the card it will have my name on it, and then my friend will not be able to use it. Does DB ask for identification to see if the Bahncard and name on ticket the same?

Danke.