Hello po,
My younger brother just had his interview last November 26, on the same day, he got a 221g to reupload a document on CEAc because the original upload was not clear. And, only ask him to send hos "passport" on his 221g. It has been three weeks and we haven't got any update. It is so stressfull. My mom send them an email and called everyday, we don't have any luck. The last update on CEAC was on December 5.