TCL 10 Pro (6.47", 6GB/128GB, Dual SIM 4G) Ember Grey $367.61 ($359.44 with eBay Plus) Delivered @ Allphones eBay

Original Coupon Deal - 10% off Eligible Items, and an Extra 2% off for eBay Plus Members ($50 Min Spend, $500 Max Discount) @ eBay

Cheaper than JB HiFi's deal, although your result may vary depending on how much discount you could get respective store's gift cards for, and pay for the product.

It's reported that the Android 11 update has began to rollout to Australian devices, and TCL has promised to commit to a two-monthly security update schedule for 2 years since the release of the device (so it's supported to at least mid-2022, considering it was released mid-2020). However, TCL has not commit to any major OS updates except for one iteration (so likely Android 11 will be its last).