Verbally asking Google on my sonos arc to play music results in this response: "Sorry, it looks like you haven't set up Spotify Premium on your Sonos app. To play from Spotify Premium, link the same account on both Sonos and Google Assistant."
I've tried looking at other posts but I haven't seen any working solutions. I've done exactly as Google said as well as reinstalling apps and reconnecting Spotify to Google assistant and to Sonos. But I still get the same message every time.