We submitted our documents last 07-Apr and just got DQ'd yesterday, 20-Apr. I got worried because alot of people were posting about getting their NZ police cert being rejected. Luckily, on our first submission everything went well.
What we did for the nz police cert is that we marked it as not available, and put the following comment that I got from here, " New Zealand police department will send the information directly to the US Consulate in Auckland, who will then send it to NVC"