The deal is on again for Good Guys Concierge Members. Last time, it lasted only a couple of days.

10% off Wish physical giftcards for $250 & $500 denominations.

Note that it takes 6 weeks or more for the gift cards to be received. (I'm still waiting for the ones I ordered in early September.)

Link to last time it was on:

https://www.ozbargain.com.au/node/482955