At least according to these guys
It might get revoked, but worth a shot.
I dont have a US account to try myself unfortunately
H9GFLTN9C7F3
FREE Monster Hunter World Digital Deluxe on PlayStation US. Else, it is $114.95 in PlayStation AUS.
I've verified that this code works. In your PlayStation, login to your US account, then go to the PlayStation Store, then go to Redeem Codes, and enter that code.
It might get revoked, but worth a shot.
I dont have a US account to try myself unfortunately