Spotify only plays for 40 seconds from Sonos

[user-removed]

Plan

Free/Premium

Country

Device

(iPhone 8, Samsung Galaxy 9, Macbook Pro late 2016)

Operating System

(iOS 10, Android Oreo, Windows 10,etc.)

My Question or Issue

I don't know if I've one problem or 2.

Problem 1

If I ask Alexa to play a song on my sonos via Spotify then the song plays for 40 seconds then stops. I've done all the things listed below for the other issue that arose at exactly the same time. This not an intermittant fault it only plays 40 seconds of any song every time

Problem 2
All Spotify plays perfectly if I start it from the Sonos App.
If I start on Spotify and try to swap to my Sonos one as a device available, instead of playing what is on my phone it swaps to playing an album that appears in my Spotify queue. I don't know why it chooses this album or whether its the same fault. I've cleared the queue but this album keeps coming back. A green connecting symbal shows but does not succeed.

I've done factory reset of the Sonos One. reinstalled Sonos and spotify on my phone and been on the Amazon web site and forgotten all my smart devices and set them up again. I've disconnected all my devices from the Spotify desktop command and reconnected them, including Sonos                         

I've rebooted my router.

One more oddity I checked the status of my premium account and noticed the card had expired though was still paying. I renewed this.

The only thing I can think of trying now is to switch from Spotify to Amazon music and if that works ditching Spotify, not a solution I want to use

Cheers