Steam says "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."

Hi! For me Steam also says "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."

Hi, I also get the message "The product code you've entered has already been activated by a different Steam account."