Bunnings Vermont South only require you to purchase ANY item (I bought a $1.95 battery) to obtain their free 2 hour courtesy trailer.
Have done this without question on 3 occasions now at this store.
Description from Website
Trailers and vehicles
To get your new bulky products home, a courtesy trailer can be arranged free of charge for up to two hours. Bunnings also offer trailers for hire in 4 or 24 hour periods, to help you get jobs done around the home.
Bookings are not essential, but are recommended to ensure you don't miss out.
When organising a trailer, ute or van hire, please ensure you have a current driver's license and a valid credit card.
Nice hack.
Did you put the battery on the trailer? 😁