Because they don't and NEVER will understand customer service. I have had other FCMs call me on my biz line, home number, cell phone, every number to reach me when there is an issue of this nature. And I am NOT some super duper HUGE client with a $100M account.
IB just doesn't get it...!
Very sad, becuase their approach to transparent/fair priced commissions and multi-asset trading should make them a raging success in this era of electronic traidng - but theywill never reach their full potential!