SUMO Reward Points is a Complete WooCommerce Loyalty Reward Points System. Reward your Customers using Reward Points for Product Purchase, Writing Reviews, Sign up, Referrals, Social Promotion (Facebook like, Twitter tweet and Google+ share) on your site etc. The earned Reward Points can be redeemed for future purchases. SUMO Reward Points offers the flexibility to offer reward points at Product Level, Category Level and Global Level.

Demo: http://codecanyon.net/item/sumo-reward-points-woocommerce-reward-system/7791451