there’s a govt. role whose purpose is to be a watchdog of sorts, and advocate for citizens, usually called the ombudsman. There is one for the financial world here in Canada and if you’ve been given the shaft they are who you can raise a case with and they will go to the folks who are ‘regulated’ by govt. and say “what gives man, this person says you’re fucking them over and if we find that’s the case we have authority to make your like a lot harder” and usually companies who are approached by the ombudsman don’t want the red tape of them getting involved, so they can sometimes fix shit fast. So I got the Canadian ombusdman for financial stuff involved even though this was an american security and company, and the ombusdman asked me to provide evidence of my communications with CS so they could open a case and look into it, and when I mentioned to CS support that I had contacted the ombudsman about the situation, that’s when suddenly things started to happen on the CS side and they unlocked my account to be able to DRS etc. Ultimately the canadian ombudsman said “yeah, it’s USA so not much we can do just now” and I replied that since mentioning them things had been unlocked etc, so the case was closed.

I suspect there’s a USA ombudsman for financial securities and such as well, but since i am canadian I started with my side of the border.