So, I called today the USCIS in regards to what is going on with my I-751....since I sent it a long time ago and I didn't even received my 1 year extension. They told me they dont know what happened but that I should get it in about 45 days from today....we'll see. They gave me a receipt number (that I already had from one of their "request for evidence"- they needed another address) and I attempted to check my status online through their website.
This is the message I get:
"Validation Error(s)
You must correct the following error(s) before proceeding:

* Customer Portfolio Insert Failed
* Attempting to add a case that does not exist. Check the app receipt number. "

I called again and they reconfirmed that the receipt number is correct, and yet...the system keeps on telling me that my case doesn't exist. Does anyone know what is going on? Is it only a glitch in the system or should I be worried?

It happens a lot with I-751's. I think it's a glitch with their Comp system.

The number is

processing center = EAC
Fiscal year = 07
day of Fiscal year = 025 this would be Oct 25
Some number = 5 or 0 if this isn't 5 it doesn't work on their system
number of submission for that day 0000

Thanks for the information - I'm confused, how would 025 mean Oct. 25?

I'm guessing-
025 being the 25th day of the fiscal year (U.S. government's fiscal year begins on October 1); Nov. 1 would be 032?

Oh thank you, I didn't realize that.