On most products, you receive bonus points. Each bonus point point gives a discount of 1 euro on the product price. Moreover with more than 1 bonus point in an order the shipping costs are reduced! With 4 or 5 bonus points, the shipping costs in the Netherlands amount to €2.50.
From 6 bonus points total the shipping costs in the Netherlands are free..
Note: From 10 bonus points total your bonus points are worth €0.50 extra, with the additional discount being deducted directly from the product price.