I am dumbfounded by your post. You say there were unauthorized trades in your account, but you couldn't wait more then 15 minutes before you hung up on IB? I'm assuming that is because they were winners.
They would be able to tell you were and how the trades were placed. Were they for margin reasons? Were they meant for another account? What IP address where they placed from? You will never know these answers because you have only 15 minutes to spare. I'm guessing that if this happens again and you lose a lot of money, you will be able to devote more time to finding an answer.
They would be able to tell you were and how the trades were placed. Were they for margin reasons? Were they meant for another account? What IP address where they placed from? You will never know these answers because you have only 15 minutes to spare. I'm guessing that if this happens again and you lose a lot of money, you will be able to devote more time to finding an answer.