https://www.siliconvalley.com/2021/06/21/travel-troubleshooter-why-wont-air-france-refund-my-568-after-a-canceled-flight/

DEAR TRAVEL TROUBLESHOOTER: I’ve been trying for months to get a refund from Expedia for flights canceled during the pandemic. Although Expedia has politely replied to all my refund requests, I still don’t have my money.

I used Expedia to book round-trip tickets from Boston to Paris on Air France last March. Just before the departure date, I received a text message from Air France. It said it canceled my flight from Boston to Paris because of the virus and rebooked me on a Delta flight instead. Air France transferred my flight without my knowledge or consent. Of course, Delta canceled its flight as well.