Accepting RSS feeds
It can take iTunes up to two weeks to accept a feed to the iTunes store. If you have not heard from them about the acceptance of your RSS feed, please reach out to them directly. SoundCloud is a hosting provider, and does not have any influence over when or if iTunes will accept your RSS feed.
Updating changes to your RSS feed
If you make changes on SoundCloud, they will automatically update your RSS feed. From there, it is up to iTunes to refresh their cache and recognize these changes. It can typically take up to 24 hours for iTunes to update your podcast.
If you are unable to see the changes to your podcast on iTunes after 24 hours, please reach out to them directly. From SoundCloud’s end, we can only recognize that the changes have been made in your RSS feed properly. As a hosting provider, we do not have any influence over when iTunes refreshes their cache and updates your podcast.