Where do I seek help with a broker that won't help?

The RH saga continues...

I have personal investing and Roth IRA accounts at RH, they won't let me change/adjust/edit/buy/sell/trade/transfer anything in or out.
Their support used to just waste my time, insult/belittle me, and point me to things that don't work, now they say they won't support me, and reserve the right to close my account.
I've asked them to close my account at least 100 times in the hopes that they would then send me my money and I could carry on without them.

I've filed complaints with SEC, FINRA, and BBB; where else can I seek help, what else can I do?