Well, i looked for a cd key within everything i got in the box.
Once i could not find it i went on the internet searching for the location of this cd key and was told that it was behind some sort of vault dweller booklet.
I only received the pipboy instruction booklet in my collector edition so i went to see an unboxing on youtube and saw that i was indeed missing the previously mentionned booklet.
Only 2 inserts in the steel case are a poster and a foldable sheet with some of bethesda advertising.
My first line of thought when i couldn't find the cdkey was that I was the problem (as cd keys do hide) but i really checked everything inside and out.
As for where i bought the game: i preordered it from amazon.