This is available in-store as well according to their catalogue. Not 100% sure when this ends however is quite a cheap price, it had a price error recently as $9.00 and thus I believe this was the promotion.
Hopefully someone can find this to use. I don't personally like Smirnoff Vodka anyways, but enjoy if you're looking to buy it! Cheapest I can find.
If you want to buy it online, it's approximately $7.00 Delivery + $28.00 for the bottle (NOT Suggested)
got guests visiting next weekend from interstate, they love this stuff. Thanks OP :P