Vodafone $30 Prepaid Sim Plan - 28 day expiry - 45GB Data for $10 instore at Woolworths Templestowe. Potentially other stores. Confirmed to be in the NSW, QLD and VIC catalogues so definitely probably nationwide.
Promotional deal inadvertently unlocked purchasing at Woolworths before consulting the catalogues (sordid details in the comments).
20GB data +25GB bonus data for first 3 eligible recharges. Activation counts as first recharge.
Currently $15 from Vodafone for the same deal
It's not only at one store. This same deal is in this weeks catalogue for QLD. So it might be a nationwide deal.
So check your states catalogue as it might be in it.