It's become an alien concept to online users that companies can be forced to comply with financial laws. But they can. Here's the FINRA complaint form.[1]

Also, here's some FINRA arbitration information.[2]

Online users are so used to being powerless, facing unreasonable EULAs, that most are unaware they can push back hard. FINRA has the authority to have brokerage employees fired and barred from the securities industry. So brokerages pay attention when a complaint comes in via FINRA.

[1] https://www.finra.org/investors/have-problem/file-complaint/...

[2] https://www.finra.org/arbitration-mediation/resolution-and-r...