How does one get a suspended Instagram account fixed? [video]

I am just a casual scroller but was moved by one of my favorite influencers to ask for help. Unlike many other people I have seen on Tiktok, her videos have always been clean, and I think same was the case on Instagram that I rarely visit.

She got locked out and is getting the runaround. Wonder what mechanisms exist to get help in such cases?

Apologies: I have read quite a few success stories here, but never tracked the best practices except being able to reach an insider.