Every user has a personal referral code and link: find yours in the Artec web dashboard under Settings.
When someone signs up with your link and pays for a subscription, you earn a commission (15% by default) on what they pay, recurring for as long as they stay subscribed. They also get a discount on their first month.
Cashing out referral earnings works a little differently from deal payouts: there's a $50 minimum, it uses its own quick Stripe setup, and withdrawals are reviewed and approved by the Artec team.