If they don't approve the account they won't approve a German credit card either, it's the same bank.
There are plenty of other M&M cards in Europe where you could try opening an account. Unfortunately I know of no M&M card that you can apply for when not having an account in the country of issue.
An overview:
http://www.miles-and-more.com/online...l=en&cid=18002
And that requires the question, why not apply for the Hungarian card if you are based there?