In reference to this previous deal I have found more iPad Air 2 cellular bundles on Dick Smith's website. You can also use the upcoming 10% value off Dick Smith cards from Coles for an additional discount. They also come with a bonus $30 Globalgig Sim starter pack. Links below:
(All come in Silver, Space Grey and Gold variants)
iPad Air 2 16GB Cell: $778 ($700.20 using DSE cards) RRP $859
iPad Air 2 64GB Cell: $897 ($807.30 using DSE cards) RRP $989
iPad Air 2 128GB Cell: $999 ($899.10 using DSE cards) RRP $1,119
Should actually be listed as $778.
Then in your description should mention in the usage of DSE Cards which make it a different price.
Since not everyone would be able to get those gift cards due to stock.