Hello ,

Thank you for contacting Steam Support.

In order to investigate the issue, we must verify ownership of a CD Key registered to the account.

Please handwrite your Support Ticket Number ####-####-#### directly on the quick reference card or sticker above the CD Key (the number should not be written on a separate piece of paper or inserted with an image editor) and reply with a digital photo or scan of the CD Key in .jpg format. Please ensure that you submit a full-color image and not a photocopy.

If you have any difficulty locating the CD Key on the packaging, please see the following link:
http://support.steampowered.com/kb_article.php?ref=7480-WUSF-3601

Note: Please use a pen with permanent ink and avoid marking over the CD Key code.

Example images:
http://support.steampowered.com/images/faq/2347-QDFN-4366/cdkey1.jpg
http://support.steampowered.com/images/faq/2347-QDFN-4366/cdkey2.jpg

After verifying proof of ownership we will gladly assist you with this issue.