Hi,
I had a similar kind of situation of not updating my current address with prometric, which I found after days of my taking the exam. I contacted Prometric on this and talked to them about it. In the meantime, I recd. an email from them, saying that the certification materials returned to them and if there had been any address change, asking me, to let them inform about it. So, I mailed them back with my new address and got the materials in about a week's time after letting them know.
The email address to which I was doing all the mail correspondences at Prometric was
[email protected] Try mailing them. You will get an automated reply atonce and a custom reply in a day or two.
Good Luck,
Makesh