There was something lost in translation, but i don't know where you got the idea that i sent out five copies. I didn't, i only have the one.
As for it not working it might be because it comes from another site and sometimes, not very often, the keys given were already redeemed by someone.
Since i already had the game (won it months before on the same site and it worked fine), it didn't gave me the information that the key had already been redeemed. If that was the case i would never have made it (there are people that sometimes pull that stunt).
It was the first time it happen to me when doing a giveaway, and i've done plenty, and for that i'm sorry.

If you don't want any compensation, if you don't want any other key, just give me a positive feedback (or not since you didn't actually got it, it's totally understandable), or just allow me to delete the giveaway.
If you do allow me to delete it, just write it down on the next reply so i can submit a ticket to have it deleted.

Sorry once again for all of this.