Received wrong key (14 characters), and can't contact sender. What do I do?

Comment on giveaway?

If you can't get in touch with them and the 7 days run out mark it as not received and they'll have to get in touch with you, or live with an "unreceived". :)

Probably someone gave you an uplay key instead of a steam one.
if you agree you can have the giveaway deleted if winner can't provide a key.

May I ask which game it was, you have won? o_O
Not that it really matters, but maybe we can see if it's a key for another platform like Uplay for example...

Like I said, it doesn't really matter, because it doesn't change the fact that it's not working. i'm just curious xD

Oh, and yeah. The only solution is to contact the giveaway creator. You should NOT mark the game as received until you have got a working key...

Everything as they have written above. Don't mark received if u got key to other platform than steam. In SG system game will be still shows not activated then u can be suspended and don't pass some sgtools rules.

Thanks for the info everyone. I'm pretty sure this game isn't on UPlay or Origin.