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Genuine Samsung Australian stock with 2 years warranty.
Edit: Appears to be error in the product information and photo. Will see if Amazon honour it.
Edit2: Thanks to user Jklaro for informing me that it has now changed to "without S-Pen". I contacted Amazon about it and this was their response:
Not to worry, it will be arriving as described at the time of placing order. If there is anything wrong in the item after delivery you can contact us and we will issue full refund on return.
Edit3:Just got another email from them. Apparently they will send the one without S-Pen and refund us the purchase price. So free $30 case, I'm happy with that! :)
If you are happy to receive the version without the S-Pen you are welcome to leave your order open. To make up for inconvenience caused, we'll process a full refund for the item purchased 48 hours after the order has shipped and you can keep the item free of charge.