HAAAAAAAAAAAAAAA HA HA. You obviously live on another planet and haven't read the actual t&c's. You don't have an order with them do you?

8. Delivery Terms

8.1  The Products are delivered EXW (Incoterms 2010) to the delivery address specified by the Purchaser, unless otherwise agreed. The delivery date is provided for information purposes only and shall not be binding on KnCMiner. The Purchaser is not entitled to refuse acceptance of the Products, withdraw, cancel or revoke the order or make claims for compensation due to any delayed delivery.

We see no reason why it cant work like that, the only addition I will add is that the refund will be 100% with the order cancelled, We wont be offering a discount/refund and still shipping you the boxes. Refunds are offered up to the day of shipment of your order.

Above all else we will be fair.
Sam