I tried to upgrade my free Spotify account to a student premium account (that is linked to my PS4) but it wouldn't work so the Spotify team suggested they free up my email address so I can create a new account. 

I created the new account and then Spotify deleted my old account.  I'm now unable to access Spotify on either my PS4 or PS3.  I assume I needed to sign out first but I wasn't told this.  I've tried leaving the PS4 at that screen then trying to use 'Spotify connect' to send music to the PS4 but this also doesn't work.

I've also uninstalled and reinstalled.  I just don't understand why there isn't a sign out option so I can sign in using my new account details.