Hello well about the DNI the peruviam goberment in janery 2008 order that everybody had to update their pictures, the adrress and the civil status(marry-single-divorce-widow) that was mandatory.
You know the informatic sistem of my country is no available to conect the hallcities information (where you get marry) with the RENIEC information, if you dont say the RENIEC dont know, jajaj, well but if she is present to the embassy saying that is marry with you in her DNI have to say that she es married.
Any way I was try to found how she can do and you can review the next page, and found the contact phone of the Reniec
I hope that well you.
review this page
http://minoviaperuana.freeforums.org/dni-f14.html