You've been played.
It hasn't been a German import since 2012, but you were charged as if it were. They played games with the label to make you think it was still coming from the country that gave us Okoberfest.
Not that they would admit it:
"We reached a compromise in the Beck's labeling case," said Jorn Socquet, Anheuser-Busch vice president for marketing. "We believe our labeling, packaging and marketing of Beck's has always been truthful, transparent and in compliance with all legal requirements."
Right. And beer makes you smarter, richer, and better with the girls.
This article explains how to get a (partial) refund. Good luck finding your receipts.