Looks like they increased cashback from $39 to $45:
Mobile Terms: SIM must be activated within 20 days of purchase. Failure to do so will result in cashback being declined. Cashback is ineligible on recharges to existing services, phones, phone deals, amaysim refer-a-friend (RAF) sales, SIMs bought from retail stores or outlets. Cashback is eligible for new & existing amaysim customers on purchase of a new service (SIM).
OP edit: $320 removed from title to avoid confusion.



Comparing this one which is $12.83 per month to the Boost deal $17 per month.
What would a true ozbargainer do?