From the email:
Thanks to Beechwood Home’s new partnership with Qantas Frequent Flyer, you now have the opportunity to earn a minimum 300,000 Qantas Points* on eligible builds under $300,000 when you build with Beechwood Homes.
They are offering 1 Qantas Point for every dollar spent* on eligible builds over $300,000, with unlimited points-earning potential. This means the more you spend on your new home, the more points you’ll earn – uncapped!
NSW/Sydney region only I presume? Builders are usually geo-based unless they are big players who have presence in most states/territories.