Laugh as much as you want, but:
I guess you dont have much experience with Poland's bureaucracy.
Mate, I have been doing this for living. If I were
to go in person.
everytime I had a question to ask I'd be out of business or never at home. Calling and sometimes mailing - if you are sending documents (once you started some procedure is enough and worked for me) is really ok.
Try dealing with the Urzad Skarbowy
I do it on a regular basis.
youll be surprised how many different answers you can get from the same question
This is very true. Another truth is also, HOW you ask.
PIP is the best though
My experiences are better with Voivode office. They even call me back, which I'd rather not expect...
Its always better to go in person.
If you have time to run around offices - sure. But I don't. So I call or email. I always get responses. And when I was in the middle of getting sth done it happened that they even recognized me by my voice. Maybe you are not experienced with gov't offices.