Why hasn't a link been removed?

The most common causes: (1) the host hasn't processed the notice yet — timelines range from 48h to weeks; (2) the site ignores notices and we're on the Google de-indexing route; (3) it's a private space behind credentials, outside legal reach; (4) the case is in facial verification to confirm it's you. The exact status of every case is in your panel.

Yes. From your panel you can report any URL manually and it enters the same circuit: 1:1 verification, route selection and notification. You'll see every status change.

It doesn't get filed. We only act against unauthorised content: copies of your content, impersonation or NCII. Filing against lawful content would be DMCA abuse with legal risk for you — we don't do it and you shouldn't want anyone to.