Flair Airlines complaint: Last minute cancellation of flight with no notice and no help

I have had a longstanding booking to fly on Flair Airlines from Vancouver to Montreal on Sunday 11 Dec 2022 to speak in the Biodiversity Conference there. When I tried to get a boarding pass today, I got nonsensical error messages over and over. When I checked my reservation online, it showed my booking for Vancouver to Montreal to be next week, Saturday, 17 Dec 2022 on the same day as I am scheduled to leave Montreal! I thought I had made a terrible mistake with my booking but when I called Flair, and after waiting a long time, they told me they had cancelled my flight and had not notified anyone. They said I could fly to Toronto instead tomorrow and then take a 5 hour bus or train ride to get to Montreal! I said I want Flair to re-book me at their cost to fly tomorrow as planned because I need to give a speech on Monday, 12 Dec 2022 in the global conference and they said they would text me an email address to use to ask for such a re-booking. I did not receive that email address to ask for compensation. This is disgraceful.