Oh, interesting! That sounds great then if all I need to do is show my BA card (the "card" on the app should be OK right, I think I have lost the actual physical card?).
I shall look into which scheme is the best to use, I think we just picked QF FF because of One World and we're likely to use OW carriers to get to the US or back to the UK and the majority of my flying for work is most likely QF.
That said, for BA EC silver which expires next year, I already have the tier points to keep Silver I just need 2 BA flights so think the next time I book domestic potentially book a flight with BA code so at least I can keep the silver until 2019.