BTW it shows a little differently. You can enter if you have a US address to ship to. Shipito or the like would probably work if you are happy to pay for shipping.
Prizes can only be sent to a Canada or USA address. You're free to enter if you're from elsewhere, but you must have a friend or family member in Canada or the USA to supply the address of. A little awkward but this is the hope of opening it up still.
DISLAIMER: Prizes are only to be distributed to winners in the United States and Canada. Shipping will be free and you will need to supply your shipping information via email if you win.