Two points,
One: I have no reason to doubt the BA Training Captain who I and my Examiner spoke too.
Two: I have no reason to lie, and no axe to grind.
Therefore I am just passing on some information, whether you believe it or not is up to you, to say "I am certain" is implying that you have insider knowledge, are you a BA Training Captain? Are you head of HR at BA? or are you just shooting the wind?
The best bet is to ask BA themselves, I am just letting people know what I was told by somebody who works there, straight from the horses mouth as they say, not third or forth hand .