So JB hi-fi released their own plans a little while ago and starting today (in-store only) you can get the iPhone XR 256gb for only $99 a month when you port from a competitor to Telstra.
Not only that, they have the iPhone xs and xs max available for slightly more:
•XR 256gb $99 per month
•XS 256gb $119 per month
•Xs max 256gb $123 per month
The terms and conditions for this though are that you port from another provider other than Telstra onto a 24 month plan (no Boost mobile, Belong or Tesltra prepaid) but at least you keep your number.
The plan includes unlimited talk and text in Australia and 80GB DATA per month.
24 month plan
-no international talk and text-
I checked out Telstra's website and even Vodafone and Optus, it seems this is the cheapest plan available for these phones and you get more data. And you aren't leasing the phone so it's all yours after the 2 years.
Definitely worth heading in store to snag a new premium iPhone.
OP, the page you linked to doesn't mention anything about an iPhone XR 256gb. Please clarify the details of this deal.