I think this is the correct link
http://www.jackcola.org/blog/240-2-copies-of-dark-shadows-up-for-grabs-giveawayTerms:
To be eligible, you must live in Australia and be an Australian resident
Winners details will be past over to Warner Brothers and Partners Hub to receive the prize
Prizes will be sent via FedEx or UPS directly from Warner Brothers to residential addresses in Australia only. P.O Boxes are unacceptable
Jack Cola and the promoters Warner Brothers Home Entertainment and PartnersHub have to right to terminate, modify or suspend this competition