Found from the Amazon app, men and women's Scholl insoles on sale through Amazon AU.
I use them in my work shoes and they make a big difference.
GelActiv Men's: https://www.amazon.com.au/Scholl-GelActiv-Insole-Everyday-Count/dp/B00R6AEAT4/
GelActiv Work Men's: https://www.amazon.com.au/Scholl-GelActiv-Insole-Work-Count/dp/B00R6AEAMQ/
GelActiv Women's : https://www.amazon.com.au/Scholl-GelActiv-Insole-Everyday-Wo…
GelActiv Work Women's: https://www.amazon.com.au/Scholl-GelActiv-Insoles-Women-Coun…
EDIT: Men's no longer available, women's still available.
literally purchased yesterday at my local chemist for $20. I swear Oz bargain is listening to my phone mic