Welcome to AFF. You might be better suited to asking your question in a new thread though, as this thread is nearly 6 years old.
I don't have cards myself, but it appears you need the Citibank Platinum card and you need to opt-in to the Citi Qantas Rewards option. As noted on this page (click on the Citibank Platinum card).
From just $6 we'll remove all advertisements so that you can enjoy a cleaner and uninterupted viewing experience.And you'll be supporting us so that we can continue to provide this valuable resource :)