I don’t know if you contacted Southwest at the time, but I always think it’s worth a try to see if they can assist - especially with them making a change. I contact them as soon as I see an issue; it seems the longer one waits, the less likely they will (or can) do anything. One of the great benefits of booking Southwest is being able to check for fare reductions and get points returned or credit issued on a nonrefundable ticket.Yes. Unfortunately that works both ways I had paid extra and changed my flight then several hours later I got the email from SWA changing my flight back to the flight I had to begin with!
All of the schedule revisions is yet another strange side effect of the pandemic, with Southwest not being alone in often making changes.
Sorry for the poor timing and unexpected change.