MY EB1A has been at TSC since Jan 12, 2007. On Feb 20, I upgraded it to premium. There were LUD's on my case on Feb 20, 21 and 22 but nothing after that. My attorney received the preimum receipt notice and my case status shows 'Request for premium processing received' but no LUD's after Feb 22nd. Should I be concerned? I noticed people getting approvals in 7-8 days at TSC.