Can I purchase additional shipping rules? Unfortunately, this is not possible. Shipping rules are not available for separate purchase. To access extra shipping rules, you need to subscribe to a MyParcel Package. Gerelateerde vragen How does the discount on my shipping rates work? Why is there no discount offered on PostNL's letterbox parcel and digital postage stamp? How do the MyParcel Packages work? What are the costs of the MyParcel Packages? What do the MyParcel Packages include?