- Click the "Refer Friends" link in the top right corner of the Groupon page, type in your friend's email address
- Your friend would need to click on the link you sent him, create an account and purchase something within 72 hours
- Your $10 credit will then appear in you Groupon account seven days after the purchase
And there you go, the credit can be used anytime on groupon.com.au within 12 months. Pretty simple right?