I would put it down as well never lie about these things as that would be a reason to automatically deny visa.
Find all the information and details about your girlfriend being denied you can. My wife and her family will sometime mention things, but not say to much, i dont know why i guess just a phill thing.
Was she going for a holiday,student or a working visa?
Was a company or an agent involved if it was for work?
Going from there you can explain it better to the ceo if required.
