Hi. Say, I bought future contracts worth $10,000. Then I covered all future contracts afterward. What if the purchase transaction get busted? How does it affect me? What should I do to remedy the situation? If I do not have insufficient funds in my account and have margin calls, I may incur a loss. Normally when I will get notified after the transactions are busted? If the broker tells me too late, can I ask for compensation? Thanks!