That's the first I've ever heard about this rumor, and to be honest, I can't see how the Union in this case could help at all as our contract states quite clearly that we are not actually entitled to any commission, and therefore any commission payment is entirely up to them.
I'm all for things changing for the better. I'm still owed some commission from November, and they owe me 14 days of December, and I need the money badly, but I still think it's wait and see, and hope for the best.
The unofficial strike option might appeal to some people but you will loose your job sooner than you can say 'commission' if you actually do it and get caught.....and the Union won't help you then because any kind of 'unofficial' strike is actually illegal.
I just hope that Gate Gourmet gets it sorted eventually...and then we are all due a massive back pay which will be nice.