Virgin have partnered with Guvera to give its postpaid users 1GB free.
Install the app and click 'connect' in the Guvera app's menu to supply your Virgin Mobile number and get 1GB free for every month you listen to Guvera.
Further details: https://community.virginmobile.com.au/t5/General-knowledge-b…
Fine print:
"Thanks for connecting with Virgin Mobile on Guvera.
If you’re a Postpaid mobile customer with Virgin Mobile, congrats, you've also scored ONE B1G GIG of bonus data to use in Oz every month until 30 April 2016. To get it, hit play and listen to Guvera at least once each billing month using your mobile data (rather than WiFi). We'll text you to confirm each time your 1GB bonus has been added (takes up to 48 hours to apply from your first use each month)"