Oh, damn, maybe you can contact them to know who redeem the key? I don't know, I never checked something like that with them.
I sent an email on the steam account that has redeemed the key when I tried it, if somehow that was you, you should check your mails, maybe some mistake or something wrong with HB.
Anyway thanks for the proposition but I can't since this is not the same game, I will be in trouble if I marked it as received but don't have the right game activated on my account.
I will wait, if you can reach HB for an answer maybe.