After much searching in this forum, I solved my first issue in that the Tidal service was not available to add in the app. That was fixed by logging in to the desktop site and updating my address.
Now Tidal appears as a service to add, and I can navigate through the authorisation process. This takes me off to Tidal website where I successfully log in and authorise.
However, back in the app, it just won’t add Tidal. Just says it can’t. I’ve reset the app multiple times, rebooted the phone (Android), but it just won’t work.
This is rubbish; I can’t play my music, making our Sonos speakers useless.
When is this being fixed? It’s clearly an app problem.
p.s: I also tried playing music through the Tidal app, then try and authorise as it played. Didn’t work either. The Sonos speaker is detected by Tidal, but won’t cast the music due to the authorisation bug.