From Qantas Points, Tips Tricks and Offers Facebook Group:
Up to 1000 Bonus Woolworths Everyday Rewards Points (equivalent to 500 Qantas Points) are currently available on $50 and $100 Prepaid Visa cards. Earn an additional 300 Qantas Points by paying with an eligible Qantas Bonus credit card (3 Qantas Points per $1 spend).
There is $5.95 admin fee per card. $1059.50 picked me up 10 x $100 VISA cards. Paid with Qantas Bonus credit card at 3 points per dollar so picked up 5000 points + 3000 points for a net cost of $59.50 to buy prepaid Visa cards I will use for business purchases. I might get some more tomorrow.
Checkout Woolworths app weekly or the end of isle where gift cards are sold, as changes from week to week, this finishes midnight Tuesday.
Effective cost of $0.0074375 per point for this batch.
Should be moved to forums.