If you want to migrate to RSS from Castos and your podcast is locked, you can unlock it by following these instructions:
1. Log in to your Castos account
2. Select the show you want to unlock, if you have more than one podcast in Castos you will need to perform this action for each feed.
3. Select the option "Settings" from the menu
4. Open the "Feed details" menu
5. At the end of the "Feed details" list, you'll find the "Advanced Options", click on "Unlocked" over the first item to remove the feed protection.
6. To finish the process and make your feed available for import, click on "Save pdocast details"
7. Done! Your podcast is ready for import