Kopete ICQ, add to contact list without my agreement


I have Kopete Version 0.70.90 under KDE 4.2.90 with OpenSuse 11.1.

In last time ever more russian user add me to her ICQ contact list, because I have set the Option “Authorizing necessarily, before someone can add you to its contact list”.
And my ICQ number is everytime invisibly!

I get a message and can it block, but my ICQ number ist in the russian ICQ list.
Afterwards they write me text too to send, but those are fortunately blocked. I get only one message, which became the text blocked.

Why can they add me to her list when I set the Option, that they dont do it?