Note: Spotify currently only accept MP3 files. If you have any M4A files on your feed, your link will not work when submitted. Please reupload these as MP3.
Firstly, you'll need to head to this link: https://podcasters.spotify.com/
Create an account and then make sure you're logged in!
Click Get Started, then fill in your name or LLC, and tick the box to accept Spotifys terms of submission.
Then, just paste the RSS feed of your podcast into the box, and confirm this off to claim your podcast!