Today me and my coworker had a meeting with our boss, who said he changed our contract for 8 hrs/day to 6 hrs/day, which automatically means less money at the end of the month. We used to work for minimal pay (in Croatia) for 3,750 HRK, which is approximately 540 USD/month. Now, because he lowered our working hours, he says we will get that ammount in our bank account, BUT we have to give him 750 HRK, or 108 USD back in an envelope when we recieve our paycheck. I know this is not legal, but only the three of us (my boss, my coworker and me) know about that deal. I want to report him to someone, but I don't want to get fired as we live in a small town and it's very hard to find a job here. Is there any way I can do that anonymously so he doesn't find out it was me who reported it?