Was looking for a cheap high data mobile plan and came across this deal (https://www.ozbargain.com.au/node/692379)
I needed more than 50gb / month so just decided to try and change the code from 50GBPTC to 120GBPTC and apply it to their 100gb plan and it worked! My new SIM is in the mail.
Add the 100GB/Month plan to your basket and then apply the 120GBPTC code. Adds an extra 20GB/Month + $17 off per month for 6 months.
This company has a terrible reputation.