As a Business Rewards Member, do I get access to lounge facilities at the airport?

While Business Rewards doesn’t entitle you to any particular lounge benefits, you still get all the benefits of your current Skywards tier level.

Can I earn Business Rewards Miles on flights taken before I joined Business Rewards?

Can I earn Miles on an unused ticket?

If I am already a Qantas Frequent Flyer, can I earn Qantas Frequent Flyer points in addition to my Skywards Miles?