I-130 (petitioned by US Citizen to spouse) was approved on first week of September 2008. When I called NVC asking status, they have not received it yet. The information officer told me usually it takes only about 4 to 6 week to get paper from CIS. I asked NVC what can I do and answer was send the copy of approval to NVC which I did about 4 weeks ago. I started calling to get the status on NVC line but automated system says they have no record of my CIS receipt #. Please advise what would be appropriate action to follow?