From the instructions on I-824 it indicates it is used for approved cases.
Can you fill us all in on the whole story? I don't have the big picture here.
Can you update your profile to show us what visa you filed for?, Service center, timeline to show us where you stalled in the process, country beneficiary is from.
It sure sounds like you are getting the run around by USCIS.
One VJ-er did something to jump start a case that had stalled, I am not sure what but here is his thread:
http://www.visajourney.com/forums/index.ph...c=35883&hl=