Why can't I refund an order made with a disabled gift card?

[Apsik]

Hi today I wanted to test some gift cards so I’ve created one and made a an order with it. Now when I try to refund the order it says that I can’t do that because the gift card is disabled. What can I do in order to remove my order from statistics?

I can’t delete the order because it’s partially refunded (Bogus).