The desk · contact & reports
Tell the desk what happened.
The board sends people to these firms on the desk's word. When a firm does not honour what the board says — the code refused, the price not the price, a payout that never came — the desk needs to hear it, and needs to hear it from the person it happened to.
Anything else for the desk arrives the same way — leave the firm as Not about a listed firm and pick Something else.
Rather write an email? report@thepropfirmdesk.com reaches the same desk. A report about a claim already filed is better sent as a reply to that claim's mail, so it stays on the same thread.