You can find your Podcast feed URL in your Podbean account "Settings"->"Feed/iTunes" page.  Normally,  your podcast feed URL is http://username.podbean.com/feed/  .  Before you start to use the feed URL,  please  validate it at: http://feedvalidator.org. If there are errors on the feed,  please fix them .  Moreover,   please make sure you have published at least one episode before submit your feed to iTunes.