When reading the "Jayne" saga its important to remember that we have an example of BASSA using this sort of ploy in recent history.
I do believe that Channel 4 interviewed a Cabin Crew member who declined to give his name. This individual spoke of the bullying that was occurring and the abusive nature of BA towards its Cabin Crew.
That individual ended up being identified as none other than Duncan Holley, who rarely worked and was a BASSA Sec. with a personal financial interest in the union membership's dues structure.
Jayne could be Liz Malone for all we know.