Because that's not what they said happened. It was not re-routed. It was in the IB system, not on any COB, until executed. That is THEIR explanation from two different departments.
Still waiting for your ticket Bob. I'd be happy to dig into the full details. I've gone to the source and tested the routing on a vertical spread which did go to the COB. I'm not interested in a he/said he/said. As you know, I'm in a senior position with IB and have the ability to assist. If you'd like me to track it, send me a PM with the ticket number or other details.