Hello Eray,
Thank you for contacting Steam Support.
We apologize for the delay.
In order to investigate this issue, we must verify your ownership of the software and associated Steam Account(s).
If you purchased software through Steam with a credit card, please reply to this message with the card type (Visa, Mastercard, Discover, American Express), full name, and last four digits of the card used with the order(s).
If you purchased software through Steam through PayPal, please provide the PayPal account holder billing information (name and address) and the PayPal Invoice ID. The Invoice ID will be 16-18 digits long and comprised of only numbers. It may be listed as the Order Description Number.
If you registered software purchased at a retail location, please handwrite your Support Ticket Number 8554-EUDJ-0804 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, rather than a photocopy.
If you have any difficulty locating the CD Key on the packaging, please see the following link:
URL: Retail / Digital CD Keys - CD-Key - Knowledge Base - Steam Support
Example scans:
After verifying your proof of ownership we will gladly assist you with this issue.
Teşekkurler.