Hi Dominique,
The best sites to use are the following:
http://www.amigobingo.com – English
http://www.bingofrancais.com – French
http://www.bingobrasil.com – Brasil
http://www.italianobingo.com – Italian
http://www.amigobingo.net – Spanish
AmigoBingo is our core brand. I suggest having a look around at this site as it has the most aggressive promotions and prizes.
If you are also interested on creating your own frontend to tie into these games like http://www.DominiqueBingo.com we can also arrange this for you.
Regarding German….. well they don’t play bingo based on our data 
.
I have a representative in North America that can contact you to walk you through everything we have to office if you like. Please let me know and I will arrange for him to contact you.
Cheers
Mike