Just a heads up for anyone tracking the best prices for their flights. I often just go to the “change” button on the app and then look at flights on the same day to see if I get refunded any points. I’ve been looking and seeing “+0” for one of my November flights. However, when I looked at the flight cost separately, it showed my flights as 3,000 points less. Usually if points are less than what I paid, it shows “-X” points, but this showed that it was even when using the “change” feature.
Also, it said that there were 3 left at this cheaper price. I purchased 3, then went back a minute later and it now said 4 left.
Just an FYI for when you’re searching. I don’t know if this is a one off situation, or if it’s typical now.