Hello mojito34.

Please open a ticket in the "Other" category and provide a screenshot of the key that you've got so we can handle the situation.

Also, if you haven't done so already, please take a moment to familiarize yourself with our FAQ and Guidelines. Especially the part where it says:

When should I mark a gift I won as "Received" or "Not Received"?

You should only mark a gift as "Received" when you have both (i) received the exact game described in the giveaway, and (ii) activated that game on the Steam account you used during registration. In all other instances you should mark the gift as "Not Received" one week after the giveaway has ended.

Thanks.