How do you report threats and harassment on Instagram and be heard?

I’m being harassed on Instagram by a profile without any reason, just because I’m in a Facebook Group, he published my profile without consent, my pictures and my workplace on his Instagram Feed and made threats against me and others

The aforementioned Facebook Group isn’t associated with bullying, it’s about Twitch streamers, and I’ve never spoke with him but he keeps harassing me and others. We kept reporting each threath and each picture but nothing changes, we can’t see the posts and the stories with our profile, but they are still up, some of us have been harassed by his followers with death threats and menacing posts.

We tried to reach to Instagram but it doesn’t help. What should we do? We followed the guidelines but the posts are still up and messages keep coming, because this guy is a popular streamer in the niche of ‘marketing gurus’.

We tried to report the reels and the posts but they are stille there, I really feel sick. I’m not famous or anything, I don’t even use Instagram…