Multiple posts/threads merged - there's no need to create multiple threads about the same issue.
What exactly isn't working?
If it's calls to German numbers while you're roaming in Germany then you probably need cash credit to pay for these international calls.
If the issue is something else then please explain clearly what it is as your posts aren't really that clear.
If you need to contact 48 support about this then see the links in my signature below.
