Checked my typing about 5 times and nothing. Then I checked Steam support site https://support.steampowered.com/kb_article.php?ref=7480-WUSF-3601 to make sure it's in right format. Dude, my cd-key is missing last letter! It's supposed to be in 55555-55555-55555 format but mines 55555-55555-4444 and ergo not accepted!
Well I fixed it by trying every number and key as last letter and finally found the right one and got my game activated but seriously WTF??
Anyone else had this?
