I called a proffesionalist. We met, he looked at the window, quoted:"No window frame...hmm" then he took a triangle piece of wood, sticked it gently under the glass, and through that tiny gap he opened a lock with a long metal wire. All of that took about 3 minutes. I paided about 60 bucks for that. That's the end of the story. Anyway I've learned a precious lesson.
Ps. In many cars locks were removed, due to notorious stealing. Poland was like New Jersey. Not without the reason, some German travel agency advertised hollidays in Poland: "Come to Poland, Your Car is already there"
See Ya