How does affiliate attribution work?

When someone clicks your link, we set a 30-day first-touch UTM cookie. If they sign up within 30 days, they're your referred user, and you earn 10% on every entry and reset on that original account for its lifetime. If that user buys additional new accounts (different competitions or challenges) within 90 days of their original signup, you also earn 10% on those new-account purchases. After 90 days, new-account purchases by the same user no longer earn commission, but the original account still earns for life.