Can I use someone else's frequent flyer number?

Related questions

1. What are the benefits of Qantas Silver Frequent Flyer?
2. Can you still earn Qantas points with Woolworths?
3. How many Qantas points do you earn at Woolworths?
4. Can a child join Qantas Frequent Flyer?
5. How do I convert my Woolworths points to Qantas points?
6. Why did the perks for frequent flyers develop?
7. Can you combine Emirates and Qantas points?
8. Can I buy status points Qantas?
9. Is it free to join Velocity frequent flyer?
10. Are Qantas Frequent Flyer points transferable?

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