Bose changed (some of?) their home speakers to "require" you to use their app to set them up or use Spotify/etc, where you use to be able to just cast directly to them. It effectively turned smart speakers into dumb bluetooth speakers unless you did it all from inside their app. I don't want to use their app, and I didn't need to before, and while it was outside warranty the store had no problems refunding me.

I was also one of the people who bought a Samsung TV that didn't have ads, then suddenly had ads. That also got me an instant refund with no questions.

In both cases I printed out a copy of the product website where they published the changed features (eg the changelog or PR release or whatever I could find) and I also printed off a couple forums/media-articles talking about the changes. The stores didn't question it or have any issues with refunding me, I guess they just then file with the manufacturer for their own refund.