Air France non existent customer service

This is the absolute worst and non existant customer service that I have ever encountered. The airline lost a piece of luggage between Paris and Cuba 4 months ago and we I am still struggling to get straight answers of the situation, either by phone (where you are on hold on an international call for more than 23 minutes, which I have to pay for) via email (where you maybe get a response after 4 weeks of sending constant follow up emails), or on social media (where you never get a straight answer on how to get hold of the right party to contact to get an update). Very unhappy indeed and would not recommend this airline to anyone.