And from the previous posters in here you can see that IIO will be no use to you. They can't give you any detailed information about your RFE at all. So just calm down and wait a few more days. It is not quite unusal to receive a RFE nowa days, VSC must get some pressure somewhere, cause from my observation, they give more RFEs since mid october.
Sooner or later you will get your GC, Good luck!