If you missed out on buying a ticket we'd advise checking in on Humanitix Resale.
Tickets can only be sold for what they were purchased and Humanitix operate an ethical resale and thats' why Strawberry Fields uses them as their provider.
So you won't pay over the odds for a ticket and those selling can't benefit from buying tickets in mass and selling on. It is rare tickets will come up today for resale, but they might. They do often come up closer to the event though so worth checking back on Humanitix Resale: https://www.strawberry-fields.com.au/resale
DO NOT exchange funds for Tickets elsewhere as official name changes will not have taken place and Tickets are checked against IDs when entering the festival. Don’t get left out of pocket and without a valid Ticket. Scamming has increased significantly online.