MichaelBliss, I don't know how payments were really handled as I never was a bASIC customer, but in general companies accept BTC as a payment only to instantly convert and keep them USD. I understand your frustration but I think that it's fair to receive your refund in USD or in BTC reconverted to today's BTC/USD rate.
Just think it the other way, picture if the BTC/USD rate had gone today down to 4. You would have been really pissed off if they had given you the refund in bitcoins right?