You can view the refusal comments in the document (see figure 1).
Figure 1: Rejected document with refusal comment
In the detail view you can see the red marked passages in the document for which there is a refusal comment (see figure 2). To read the corresponding comment, move your mouse over the highlighted passage.
Figure 2: Read refusal comment
You can now see both the MOXIS user and the content of the comment.