>>Do have tried the walktrough at "Help" (in the upper right corner) -> "Report a problem" ?
>
>This is a little bit different than the French server but ends up in the same pattern. Once you proceed, there is a Yes/No. If we press No, there is a field to enter a text. But, this is quite general and there is no field to enter the email. IAC, I have send something using that on the French server.

I have not tried it, it was just that what I found. My french is non existent (bit of lazy to learn), but I wouldn't link you to the german page. Why would you need to enter your email adress into google ? Guess they know it anyway. Just kidding.

Agnes