How to collect Qantas Frequent Flyer points after booking flight?

Hi i booked a qantas flight (qantas and emerates) and have the booking reference.

The flight is not untill the end of this year. How do i add my qantas member number to the flight so i can get the points for it? I didnt put it in when booking cos it was through skyscanner then webjet.

Thanks. Tried "manage my booking" but cant see anywhere.

Related Stores

Qantas Points
Qantas Points