Good prices for the iPhone 12 mini, part of Telstra's Father's Day promotion. Similar price to the recent Costco deal, $20 cheaper on the 128GB. Not as cheap as the $699 deal for Telstra day however.
Make sure you select outright when purchasing. A Telstra account/ID is required, which you will have if you currently have or have had a product with Telstra in the past. See previous deals, eg for discussion requiring that, worst case you can go on a plan and should be able to cancel after a month.
I have had this phone for about a month and the battery life is beyond dismal, having to recharge two or three times a day. Wouldn’t recommend it.