So, when would be a good time for me to call USCIS and ask whether there is a problem with my application?
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Application received at center: 8-30-2012
EAC received: 12-23-2012
SS received: 12-31-2012 -DONE-
Renewal received and routed to Nebraska : 8-21-2014
Renewal Approved 11-14-2014 