Accessing paid subscription podcasts in Spotify

[podcastsubdeveloper]

There are platforms where you can buy subscription podcasts and listen to them in almost any app via RSS. Spotify does not allow RSS but still support paid content. Supercast is for example a platform you can use. 

I have a big subscription platform with multiple podcasts and I would love for my subscribers to be able to listen to their content on Spotify. Is there a way to code a connection to make that happen like via Supercast?

[flexbronson]

Replying just to get this issue on more eyes. It used to be available, now it appears not to be. I just subscribed to a premium podcast with an RSS feed,  which used to work on Spotify, but I have yet to find a way to add it...