Do I need to pay for shipping?

Can I cancel/return my order? What should I pay attention to while claiming products? I encounter with error page while claiming products. What should I do? In how many days will my free box to be delivered? How can I track the shipment of my Samplico Box? What happens if I am not at the delivery address when my order arrives? What Is Reference Code? Can I change the delivery address of my order? Do I need to pay for shipping? What should I do about a missing/damaged Samplico Box? Which courier company will deliver my box? My free products have arrived, now what?