eSIM excluded.
Cashrewards is currently offering $100 cashback on the $320 plan Expired, now $26 (16/11)
I am not 100% sure if the Cashback will stack with the $220 deal, but based on the comments from a previous deal it should.
Cashback will likely go down to ~$30 after a few days but not sure exactly when.
$120 for 280GB seems pretty good.
My optus cashback from April is still pending