Sorry for piggybacking on your thread, Tex, but I have similar concerns.
Just to check, as saifali says, T212 offers cash accounts. Does that mean we are at risk of cash trading violations if we trade US stocks using unsettled cash? (https://www.fidelity.com/learning-center/trading-investing/trading/avoiding-cash-trading-violations) And if so, is there a way to know when exactly our cash is settled?
@David - tagging you in case you or someone in the 212 team can help.