A bit strange… says limited time offer with 7% claimed but only 2 left in stock (at time of posting). Maybe they will keeping topping up stock until 100% of the deal is claimed.
Ships from Amazon UK so it will arrive around 11th March. Delivery to Sydney is usually pleasantly quicker in my experience.
I've grabbed one and now it is showing as 5 left in stock - I think you're right that they are adding them