Thanks all.
I misunderstood the translation on the bill. There are metal labels on our mailboxes. They are the ones that apparently cost us 100 CHF; we asked around and everyone else we know (ok, like 2 people) paid 35 CHF. So I'm pretty sure we are getting hoodwinked .
I am not ready to tear anyone over 65 frs, but I am a little concerned that it may some of kind of prelude to a very tragic opera. Justa Kidding!

thanks
Leyla