I've sent NVC an email last Friday, just received their response today. My case is also complete since May, just waiting for visa availability/priority date.
hopefully, we'll have a current PD before the year ends, baka sabay pa tayo.
My priority date is 30 Dec 2010, I have also sent my civil docs to NVC last April but is yet to receive a reply, how did you know yours is complete? did they send you an acknowledgment of some sort?