Great offer from NAB Goodies. $20 back on $100 spend at Special Gift Cards! One cashback per customer.
I got an Aussie Explorer which I use at Ampol! :). Plenty of other cards to suit as well.
Check your offer in the NAB App. Scroll down from Home Screen, select Goodies, scroll through offers to see if it appears and activate it.
Likely targeted, partners account got it, mine didn’t.
Note:Check offer terms and claiming details by reviewing the offer.
NAB GOODIES It seems to get an offer, you must use your card at least monthly to get (and also keep) the Goodies offers appearing.! Source: Email T&C's
Also see here for more T&C's, thanks @wookiemonster
https://www.nab.com.au/personal/goodies/terms-conditions
Nothing on my account.