Poor customer service. Help needed urgently.

We are receiving no help what so ever to locate luggage which went missing on flight AF0995 on the 14th of July 2018, Jhb to Paris connecting to Montreal via AF0342 and final flight WS3434 to Quebec city. My wife is currently in Quebec city Canada. The Canadian side of Air France says the matter should be refered to Paris as that is the last known location of the bag. I spoke to the baggage supervisor in South Africa and after trying to locate the luggage tag number said the same thing, contact Paris. This should be refered internally and not just passed along and shifting responsibility to the client. The call cantre in Paris does not pick up and no email address availible. Please help. The bag is needed urgently as my wife is set to compete at an world championship with no official clothing. Tag number on bag is AF583115.