You will receive the coupons once you have achieved a certain rank/badge and you can apply that coupon to any product that you have purchased. If you achieve the rank/badge the coupon will be shown on your my-account page. You can experience this feature by purchasing the Restrict product.
( NOTE: this product will be restricted until you have achieved a certain badge/rank, this will be available in the shop ).
For more information please visit documentation.
( NOTE FOR ADMIN: the setting will appear in badges/ranks ).