https://sellercentre.ebay.com.au/promo/5802
Usual conditions apply - you have to sign up for it first; single quantity listings, not for stores.
They have to be listed by the 31st but you presumably won't pay any selling fees if they're sold after that but still on their first cycle, as it's always been in the past. It says it applies to gtc listings until they roll over, so obviously it'd work for the full first cycle on all listings.
