Here are the details: applied for H-1 extension regular processing at VSC around 1/11. Then decided to do premium processing and sent the $1000 on 20th. My case status showed approved on the 21st and I thought that it was premium processing in 1 day. Then, my Int. Scholar's office (univ.) got the approval notice and also check for $1000 back. So, my case got approved the old-fashioned way in about 10 days. A nice gift from USCIS!!!