See link for particular details. Go crazy :)
UPDATE Adding some of the helpful tips that have been mentioned:
- Bank issued Amex cards work
- Can be multiple items in 1 order to make it over USD$100
- If you are ordering multiple items you can also select 'I want my items faster. Ship items as they become available'. Shipping remains free. Cheers
- If you're going to buy $75 or more worth of Toys don't forget to add the FREE Gund 2014 Amazon bear. Cheers
- Don't have an Amex? Pre-buy an Amex travel card and it will work (but card won't be valid till next business day after purchase
- If you don't get free shipping on an item, try chatting to an Amazon rep and they might be able to help you
- This is a limited time offer. Amazon reserves the right to modify or cancel the offer at any time.
- Offer applies only to products sold and shipped by Amazon.com through AmazonGlobal.
- Items must be purchased in a single order and shipped at the same shipping speed to a single address within Australia.
- The Shipping speed for the offer is AmazonGlobal standard shipping.
- $100 minimum purchase required. Shipping and handling fees, gift wrap charges, and taxes are not included in calculating purchase amount of the $100 minimum purchase amount.
- Offer applies only to the purchase of eligible products made with an American Express Card as your payment method.
- If any of the products or content related to this promotion is returned, your refund will equal the amount you paid for the product or content, subject to applicable refund policies
- Offer is non-transferable and may not be resold.
- If you violate any of the Terms and Conditions, the promotion will be invalid.
- Void where prohibited.
- Shipping charges may apply to discounted and free promotional items.
- Offer does not apply to items larger than 16” x 14” x 10” or over 20 lbs., digital content, Kindle devices and accessories, and gift cards.
- Offer good while supplies last.
Damn it, you beat me to it.