For anyone wondering why they didn't receive the DSC targeted offer (like me), I just realised on the bottom of my husbands email offer (he was lucky) in fine print it says:
You have received this email because you are subscribed to Qantas Frequent Flyer 'Flight specials, news and updates' emails. To unsubscribe from 'Flight specials, news and updates' emails only, click here
I checked my QFF mail subscription preferences and realised even though I'd ticked the box for 'Exclusive offers for Qantas Frequent Flyer Members', and all the other options, I didn't have "Flight specials, news and updates' checked. Bummer! Must have opted out at some stage, unwittingly.
Could this be the reason why?