Locked accounts usually don't get any replies. I honestly don't think you can get $1200 back. Of course, you have to try your luck to the fullest. Hope you can get your money back.
Depends on the site. If it's those unpopular websites, expect that there will be no fair judgment on the case. Those sites will not give $1,200 in just a simple KYC as a solution. If it's involved legit and popular websites, as long as everything turned good on their investigation, the chances of getting that amount are high.
OP never mentioned the name of the site. Only if we know it, we might contribute to pressuring the site if we see it's unfair.