WooCommerce Points and Rewards extension allows you to reward your customers for purchases and other actions with points which can be redeemed for discounts. Easily set how many points customers will earn for each dollar spent and set how many points can be redeemed for a specific discount amount. Points can be set at the product or global level, and you can also control the maximum discount available when redeeming points.
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https://codecanyon.net/item/woocommerce-points-and-rewards-wordpress-plugin/21945963
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