After seeing the proof, I was still confused what I would receive, and thought maybe the blocks were placeholders for the text that would appear in the final print. You should definitely make this more clear, because the phrasing on the site gives the impression you'll get the actual code.
Without a doubt you'll get lots of requests for refunds if this isn't adjusted.
You're getting the code as blocks--the hover text is just to show you how the code is being highlighted.