This was an honest, unfortunate mistake due to lack of communication around establishing ground rules.
I believe it was 8 copies. If it so happens that you have one (or more) and are from the board - maybe you'd like to refrain from selling and enjoy the fact that you got very lucky.
Not sure that this detracts from any BLINDBOX experience. There's still a lot of goods in the box and believe me, this won't happen again. If anything, the stray books show the quality of what you'll get in the box. So - subscribe!