I was on a flight from Milan (MXP) to Paris (ORLY) where I checked in two bags. Upon arrival to Paris, I noticed that one of my bags didn't arrive. I reported it immediately and they said it was left in Milan and it will arrive the next day. There were around 7 people waiting in line to report missing bags / items, all from the same flight. The guy in front of me reported that his wallet was missing from a checked-in bag (at that moment I thought, who in the world puts their wallet in a checked in bag).
Once I arrived to the apartment, and I opened my bag, I noticed my stuff was missing. Since I was in a rush, I put a jewelry box inside the checked-in bag. They stole the box, and one designer handbag, which was also inside.
Where should I report that incident? I am no longer in Italy to report it to the police, nor am I at the airport to report it there. I tried to contact the airline (Vueling), but it seems impossible to reach an actual person and not the automated line.
Considering multiple people got affected, this should be an incident. My end goal would be to retrieve the items because a few of them are of sentimental value.