Actually yes, we finally got a response just yesterday.
They did the usual "we only have to DV within the first 30 days" blah blah blah. I'm actually glad they finally got back to me because now I can demand to know where and when they sent this supposed first letter and I will have them by the short hair. They claim they recieved the file in 2002, and when they come back with an address, they will only have 2 options: our current address which they just now got from all my correspondence OR his ex's mother's address in another city where he's never lived before. Either way, we can prove his mailing address was neither of those places is 2002 and then we'll have yet another piece of documentation from them PROVING that this is wrong. And the whole time, they keep updating his credit file again and again, $1000 a pop. Jerks...