Locked Account

So , an alt account I have on facebook has been locked. I've been using this account to grow fb pages/groups , I had to log in that account for a few months. I logged in through VPN/unique browser , changed profile name and photo in order to grow something new.

For some reason , a few hours after doing that facebook has " Temporarily locked " my account and it doesn't allow me to confirm identity in order to unlock it. I did the " confirm photos of your friends " test , and it still remains locked, I'm pretty sure I did that right.

What can I do about this situation ?