Hello everyone! My grandma filed I-130 for her daughter (my mother), my father and me under F-3 category, Priority date is October 2010 which just became current as per the latest visa bulletin. The file was approved in December 2014 and was transferred to NVC in Feb 2015 ( we got the letter from NVC with case number). So, as of today we emailed NVC for further steps for invocie ID and they emailed back saying that our records do no show that we received your petition. So we all are worried that what has gone wrong here. We do not know who’s fault it is here, is it USCIS that messed up on their end or it is NVC or are we missing something. Anyone faced similar problems or situations, please help. We called USCIS and they said the file was approved in Dec 2014 and transferred and nothing is wrong with the case. I am so confused and anxious. Please help, thanks