I think there is no doubt you and John K. should be paid for your services, even if this story did not go as we would have liked... But the refunds should not differ by the amount paid? I mean someone bought chip for 0.08, someone else for 0.082, why everyone is getting the same amount?
People paying 0.08 were the first ones on board and were taking the highest risks (if a whole batch isn't completed, it's canceled and you only get back what you put minus fees), this is why they had a discount which still applies.