"Turn eligible products into credit towards your next purchase. The Sonos Upgrade Programme makes it easy for you to expand your system and enjoy an even better listening experience with savings of up to 30% on a new speaker, soundbar, component, or set."
Email from Sonos says double credit to 30%. Redemption page on website (https://www.sonos.com/en-au/myaccount/user/offers/upgrade) says up to 30% credit. You need to have an account and be logged in view this page. Tried Move 2 and it is 30%. YMMV. Not sure if targeted.



believe this is targetted for existing sonos account with active devices.