Instagram account with 60K followers permanently disabled over copyright claim

Hey everyone, looking for advice or similar experiences.

My friend’s Instagram account (about 60K followers) was permanently disabled for copyright infringement. The complaint apparently came from an agency called Corsearch. We tried contacting them directly but never got a reply. We also appealed through Meta, but the appeal was rejected without any meaningful review from what we could tell.

The supposed violation was just a keyword used in the caption. There wasn’t any stolen content or brand misuse. Just a word in the description flagged as copyrighted. Losing an account over a single term feels extremely disproportionate.

Has anyone dealt with Corsearch before or had accounts disabled due to their reports?
Is there any way to escalate this with Meta or file a counter-notice that actually gets reviewed?
Any legal or procedural route to dispute what seems like an overreach?

To be clear, I’m not saying the claim is invalid for certain, but from our side it looks questionable and the lack of response from Corsearch makes it harder to resolve. The account was built over years and it’s just gone.

Any guidance from people who’ve been through this would help a lot.

Thanks.