Common sense dictates that when an order is placed, it is implied the customer had grant good faith to pay for the product he requires. If the customer placed an order, the system must reserve the ordered product in the stock for that customer. Then the customer have to pay for the order during a certain period of time (invoice). This is explained to the customer at the time the order is placed. In ASIC-K case, he lost his order because a failure in the payment system, not because he refused to pay. KnCminer sales department should contact him and offer another payment method to complete the sale, however that is not what happened. ASIC-K order was just simple ignored and replaced for who could pay first.

In another words:

"Fuck you (ASIC-K) got mine (upgrade)".