WooCommerce Points & Rewards, how to reward user with points instead of a coupon?
If you are using Woocommerce Points and Rewards plugin, you can reward a user for referring a friend with points instead of a coupon. To do so, go to the Points and Rewards plugin settings and add amount of points under the "Points earned for referring a user".
After that, if you want to stop generating coupons, add below code to functions.php file:
add_filter( 'gens_raf_generate_coupon', '__return_false' );
And that's it!