You seem to think it had something to do with her name? Was it a Middle Eastern name?
It had everything to do with her name: she was turned away by the person with the guest list, but not by the security guy checking for fake IDs. That was the only piece of information they had. And no, she's got a down-home 'good old American' type name, if I've ever heard one.
Did you ever get to the bottom of why it wasn't on the guest list?
Did you ask the security guard (or did the guard offer) to get someone with authority to rectify the situation?