It's meant to give a chance of success but doesn't display anything - am I missing something?

hmm, its working for me.. did you use you credits for patron?

because even on the forums you arnt listed as one..

You dont need to be patron just premium.

I think the problem is that you didn't select a country and an operation before.

Ok I've got it you need to select a spy op to generate it, if you just leave it as spy it doesn't work. Thanks