i Bought a new laptop and coming whit a cupon code,,, i want a trade for a battlefield 3,,,,,,, the coupon say,,,,,

This coupon grants you a free download od DIRT3,
brought to you by AMD Gaming evolved,

START YOU FREE DOWNLOAD :

[1] Go to www.AMD.com/Dirt3promo
[2]Submit your UNIQUE COUPON CODE and contact details
[3]Check you email for your download key
[4]Follow the email instructions to download DIRT3 through Steam

YOUR UNIQUE COUPON CODE

[xxxx-xxxx-xxxx-xxxx]



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im check in steam and is 49.99......