Apple released iOS 8.1.2 for iPhone, iPad and iPod touch users running iOS 8. The release “addresses a problem where ringtones purchases through the iTunes Store may have been removed from your device.”

In addition, Apple set up a recovery page for the lost ringtones,  itunes.com/restore-tones. Those who faced the issue can visit the link to bring back lost ringtones to the device.

The update package is 28.2MB. It will take a few minutes to update your Apple devices.

You can check the update for your device by going to Settings> General > Software Update and then your phone will search for the update. If the method via OTA does not work, just go to iTunes , click on your device tab and "Check for Update" or "Update" .