How often does AMEX offer 20% Bonus when transferring Rewards points to Qantas Frequent Flyer?

How often does this offer happen ?

I was told by a fellow AMEX Rewards member just yesterday that they got an invite to do just that, as they ‘had not transferred points in a while’. Believe the sweet spot was over 100,000 points for 20% bonus.

Have a read of this post which outlines the current offer and rhythm of previous offers of Qantas Point transfer bonuses.