I'm currently in college and unemployed. I have over $250,000 in liquid assets due to inheritance. I recently opened an account with TDAmeritrade with $20,000 to trade futures, but I was denied for trading and margin even though I told them I had a lot of money to fall back on. I've been studying on my own and using a trading sim for two years. I felt that I have been pretty successful. I finally decided to open an account with a modest amount of money to trade with but I can't.
What can I do to get their approval for trading futures? Are there any other brokers out there that will let me trade easier?