Refunds are processed in USD via bank transfer, only in some circumstances where it may not be possible to refund via bank transfer, our management can approve a BTC refund. BTC refunds are not given for single Neptune purchases.
KnC sucks at this point. I don't understand the logic behind not giving BTC refunds for single Neptune orders. Knowing that they have 5PH mining at this moment this seems a bit stupid. Also only one time per week? Wtf? I can have my refund in 5 mins with BTC, but i have to wait a few days for them to wire the money and then another few days to get it. Sad times. KnC you let me down!
In case you wanted to sue them it would be difficult for them to prove in a court of law that they sent you a refund "on the blockchain". They have no other option than to send bank-document-verified transfers.