Hello, I bought the COD4 on April 6, 2014. I bought it from a website called cdkeys-shop.com. I don't think they scammed me but I did not carefully read the instructions to activate the game. It said that you had to already have the installation disk because they only game me the 20-digit code. Now I have the CD key but no installation disk, and I do not want to torrent the game. Please help, I really want to play COD4 and I have proof of purchase.