Online cruise travel agents based in Germany

I want to book a Costa Cruise to the mediterranean. If I go to their website or any other cruise website in English, it defaults to a North American site which is actually much cheaper. I would have to give an North American address though, which I could do if necessary. I would rather give my correct address though, so I'm trying to find a way to book with my German address but I prefer it in English and I'm hoping the price is still the same. So far it is actually hundreds more to book in Germany.

So do you know any online cruise travel agents that book Costa cruises in English for Germans?
Thanks.

Try AIDA Cruises ... a wholly owned Carnival/Costa German subsidiary

Thanks for the suggestion but I am interested in a cruise that stops in Croatia and I don't see any of theirs that do.