Luggage

Worst airline ever!!! Air France!!!!! My luggage was not transferred from Paris to Athens on our connection flight, no service or help on my requests on where my luggage was... We then traveled to Santorini and still not received my luggage and still not any feedbac****! We have a wedding in 1 day and need by luggage ASAP!! Send emails, no feedback, tried phoning no answer!!! Where is my luggage???? Third day????