Found this in an amcal brochure, but can't find a list of participating stores on the claim website. Great deal if it's something you need to buy anyway!
First 500 claimants.
Purchase the specified products across the brands of Sudocrem, Heinz Baby Basics, Infacol and Baby U from a participating pharmacy in one single transaction, to the total combined value of $25 or more, during the Promotion Period. Limit 1 claim per household. A household being defined as a street address within Australia.