You just need to head to your Referrals page and create your referral code(s).

You can create up to 10 different codes for referrals to use. When someone uses your referral code, you will earn 10% of the house edge of the games they play.

You can head to your referrals page to claim the funds from folks wagering on your code. You can check your Referred Users page to see your best referrals.

Please note, using your own referral code will result in action against your accounts, including bans & forfeiture of any funds.