The long story short is that I would like to be able to close my Spotify-linked Showtime account, but Showtime support sent me to Spotify, because apparently they're unable to delete an account that was created through Spotify.
My question is, how can I disconnect Showtime from Spotify without cancelling my Student subscription? Surely there's a button somewhere deep in the bowels of the settings pages that I can click on to this.
For those interested in why I want to do this, the short answer is that I do not think that Showtime added value to my Spotify subscription because I'm not that interested in Showtime's series, and I would like to close my account with Showtime because I don't want a service that I do not use to hold my user data. I should have investigated Showtime's offerings before linking the two in the first place.