I got 1 to 5 from them. The issue wasn’t that i didn’t get one, it was book 5 had the cover of book 5, but the content inside was book 3.
But all i had to do was call them and tell them what happened, and without any hassle they sent me the right book.
Still funny though, because i thought i was going insane when i was thinking i was studying derivatives but didn’t realize i was reading FSA….