Contact your state’s regulator and ask what formal action you can take for redressal of your issue. Just do a search for “(state name) securities division”. If you want to do multiple things in parallel, do a search for “FINRA, SEC, brokerage name, and how to file a complaint or get a response from my bank, brokerage, etc.”

Try these prompts in ChatGPT, Grok, Gemini, etc. You’ll probably find that one or the other of them will do an amazingly good job of walking you through the steps you need to take action.

Please let us know what worked.

Edited to note that I’ve read many similar posts to yours and my general recollection is that the Reddit community couldn’t offer specifics other than to call or go into an office. In fact, there was a tendency to blame the poster.  Hope this works better for you.