It took a lot of trial and error, searching and frustration to see that the "attachment" is actually the "live" paper clip graphic at the top of the cover email my vendor sent to me.

Also, the copy line that leads in to the above box is poor communication. Why do you choose to highlight this line in bold, e.g. "How can we imporove your experience paying invoices online?" and then limit the number of words allowed in the box below it? Three suggesions: 1) If the box is meant to be a subject line, then say so. 2) if you want to limit the number of words then state the specific word limit inside the box. 3) And if you want to draw the person's eye to "New Idea," then bold those two words.