I looked it up and you have 180 days to dispute.
Dispute Filing Window
Were increasing the time for buyers to file a merchandise dispute (Item Not Received and Significantly Not as Described) from 45 days to 180 days. All references in the User Agreement to Opening a Dispute within 45 days have been updated to reflect Opening a Dispute within 180 days. The Sections these changes appear include the Introduction, 3.15, 13.2 and 13.5.
https://www.paypal.com/us/webapps/mpp/ua/upcoming-policies-full
I talked to the owner and he told me the 12th for orders outside of aus. We'll see what happens...