NinjaTrader claims theres no account minimums however that is a lie

oh they 100% took advantage of me being new and not really understanding everything. Im looking back on everything now and seeing a lot of dishonest things. Im not married to them at all. Charged me $250 in margin violations in october, only one margin call and nothing else. Dont even know what instrument I was trading. No emails, no messages. Just a charge of $250 for margin violations not even itemized lol. I never even noticed.