Samsung Galaxy Note 20 (non ultra, 4G version, 256 GB) for $499 when you port-in your number and sign up for 12 month $99 Telstra contract. Monthly 150 GB data. Plus $10 monthly credit for port-in customers (monthly credit only for first 12 months).
NOT valid for new connections. Usual exclusion - you cannot port-in from Telstra pre-paid, Boost or Belong.
I didn't find it on website but this came in TGG marketing email today morning ("Check out these weekend specials")
Minimum cost $1567 (due to $120 credit over 1 year). In store only (so not available in Metro Melbourne)
Note: JB also has offer for Note 20 but it's expensive ($599) and no $10 monthly credit. There is another deal for Note 20 Ultra 5G at JB for $1099 in case you are interested in Ultra (https://www.ozbargain.com.au/node/556539)
OP you should add this to post, its in the email;
"Due to level 4 restrictions this offer is unavaliable in Metro Melbourne"