Hi thanks for the giveaway, but when i try to redeem the game I get a duplicate key error. What should I do?

already activated

same, allready activated

your key is already activated by someone

yup, same thing here

PLEASE ADD ME ON STEAM TO TALK, BECAUSE I SEE THIS PROBLEM!

Already activated, same as everybody :(

The product code you've entered has already been activated by a different Steam account. This code cannot be used again. Please contact the retailer or online seller where the code was purchased for assistance.

This key is already activated. WTF?