Postmates Referral Code page. Welcome! Enjoy and share Postmates referral links on this page. Fan of Postmates? Everyone's favorite delivery service! Lunch, dinner, groceries, office supplies or anything else. Our Postmates deliver from all your favorites places on-demand. Great Postmates Referral Codes, click one of the the Postmates referral links below. Click the “show code” to reveal the referral code.