If there were a line of those that received the fix it email and haven't heard anything you'd be pretty far back. Sorry...hopefully you hear something soon.
This is my understanding of how DL looks at apps. Lets say there are 1000 apps. They look at first 100, send "fix it" emails and invites as they desire. Then they look at the 200 hundred group, then 300 etc, etc. As they move forward in the groups they do not look back. So all those that fixed their apps and then didn't hear anything may have to wait until they go through all the apps, to 1000 in my example, before they start working at #1 again and eventually return to you.
With me it was easy, they looked at my college grades, said "yea right" and moved on.
Good Luck!