24 hour review hold Instagram

Does anyone know how to bypass this? This happened to an account that was freshly created, had no posts and now this happened with their desired username on file

Did you fix it? I’m in the same situation

Patience is the key. Most of the organization shave a lot of pending request and tickets due to shortage of staff and they are still clearing them.
You can also raise a ticket using below support links
https://help.instagram.com/contact/1652567838289083
https://help.instagram.com/contact/606967319425038
https://www.facebook.com/help/contact/606967319425038