Give Your Friends $10 Off on Their First Kate Farms Order and Get $10 Off for Each Successful Referral. How It Works Earn Rewards by Sharing Your Unique Referral Link with Friends. When a Purchase Is Made Using Your Unique Referral Link, Well Send an Email Describing How to Redeem Your Reward. Rewards Earned by Referring Multiple Friends Can Be Combined Up to $40 Per One-time Order ($10 Per Successful Referral). an Account Is Required to Redeem Your Rewards. Rewards Cannot Be Combined with Other Discount Codes. Earned Rewards Expire After 12 Months.