Robinhood Closed My Account and Will Not Respond to ANY Support Inquiries

Robinhood recently closed my portfolio for "suspicious activity." Apparently my birthday was wrong and they locked/closed it. I had money in my account and they recently closed out all positions. The app like doesn't let me open a support ticket and their support email hasn't responded after 5 emails over the last couple weeks.

I received an email that said "we're working with your financial institution to reverse your funds" but this was a week ago. I also, for some random reason, have $900 less in my available cash - even after all of my positions were closed.

I've tried reaching out through phone, wallet support, etc. and am literally getting no where. Is there anything I can do to guarantee that I will receive my funds?

I've heard something about an ACAT - but not sure if that'll work since they closed my account.