Yes i am quite busy, but i nevertheless read customers emails daily, in more complex cases i don't reply immediately.

@tarmi
Investments in bitcoin are always high-risk and no one should invest more money then he is comfortable to lose.
I was already writing a mail to you, but it seemed better to put it out here for everyone.

So definitive answer you are looking for:
Bad news first:
I am by law not obligated to give any refunds for customer specific equipment like the bitburners as stated in my AGB (Terms of Service).

Nevertheless I value my customers, and i am nice guy.
I will (on request) refund any money that has not yet been spend on parts.
that will be about 50%.
I have to crunch some number to get the exact per board amount.

I do plan to reuse a lot of components for the bitfury design.
But some can not be reused and will be thrown away, like the PCBs for example.

For those that received a refund i could give a discount on a new bitfury order of about 70% of the not-returned funds.
But we all have to ask ourselves: is bitfury going to deliver?

Executive summary:
50% refund guaranteed.
70% money recovered when ordering a BitFury product.

Messy would be a bold understatement.