I just reviewed the issue and is not with spotify.
Go to your podcast provider and close to the RSS link of the podcast should be a blank for you to enter the EMAIL associated with that RSS Link (podcast episode) enter the email associated and then it will work. In the Send Code Option you will see that your email will be there. I hope this help.
in the podcast section of the recorded episode you should see a email for public feed, you will need to enter your email address in there so your provider can communicate with Spotify. Is not Spotify is just that you need to enter your email below the FEED RSS.