Guys, at this time, there are two possibilities here and I suspect that #2 is IT.
#1 He is a con
#2 He took the money but is still to acquire the cards from "somewhere". He is probably stalling until he receives the merchandise, but to keep us quiet for now, he claims that the cards have been sent already, and is slow to respond to e-mails.
Anyway, I will give it some more time (end of the month) and then I will personally call Bernd, and the German police, and do whatever necessary to get my money back.