F2A Unmarried child of LPR under 21

So, on Jan2012 right after my Mom got her Green Card , she filed Form I-130   to the USCIS  for both my brother and sister who are in the Philippines. . My brother was born on Dec1992 so he was 19 yrs and 1 mos old when the petition was filed.
My sister is over 21 so she is on F2B visa category preference.


Jan. 20, 2012- F2A Priority Date for my Brother
Jan. 20, 2012-F2B Priority Dater for my Sister

FAST FORWARD......

June 11, 2013-  Approval Date (I-797  Notice of Action)  for both categories . But only my brother F2A is                            eligible for further processing.

June 21, 2013- The National Visa Center (NVC) received my brother's case (also my sister's F2B) that                                was forwarded by the USCIS after the approval.
Note: After you get the approval letter in the mail, give NVC at least 2 weeks before calling for your case # and IIN . When calling, have your USCIS receipt # ready, name of the  petitioner and applicant , and their date of birth. Once your case will be in their system, a case number  will be assigned to you that starts with MNL for Manila Consulate. Different Consulate starts with different letters. Once you case number is assigned, you give that number everytime you call NVC for future follow-ups. Also,  have NVC update the petitioner and applicant's email address for future correspondence.

July 3, 2013- The National Visa Center (NVC) assigned a case # for F2A. (brother) with the Identification                            Invoice Number (IIN)
July 5, 2013- NVC  assigned a case # for F2B (sister), which I find it odd since it's still not eligible for                                further processing. But NVC attached  a letter with the case # saying as I quote:

Unfortunately, visa numbers are not presently available for your use. You will be notified when further
consideration can be given to processing your application for immigration. The reason for this delay is that thereare more applicants for visas than there are immigrant visa numbers available under the limitation prescribed by law.

Forward: 

July 3, 2013- By logging in at the  Immigrant Visa Invoice Payment Center , we pay the Affidavit of Support                      (AOS) for $88 .
                      Note: You need you case number and IIN in order to log in and US checking or savings                               account .
July  9, 2013- Affidavit of Support (AOS) status shows "PAID".
July 10, 2013- AOS Barcoded Cover Sheet received via email. (NVC sent it via email this time because the payment portal would not let us  print the  cover sheet. So if this happens to you even after your status shows "PAID", give NVC a call and request for the cover sheet to be sent in your email.

July 11, 2013- Affidavit of Support packet mailed.  

AOS and Supporting Documents that was sent: 

Signed I-864 -Mom
Letter of Explanation of non-filing for ITR ( no job & zero income)
Signed I-864a- Me-household member
Last 3 yrs of Transcript of Records
Last 3 yrs of W2's ( and 1099 if you have one)
Employment Letter (latest)
Paystubs (6 mos worth)

Signed I-864A from my husband as household member since we are combining our income
W2's
His employment letter
paystubs

Supporting Documents:
Joint Sponsor's proof of citizenship( passport and naturalization copy)
Joint Sponsor's birth certificate( orig & photocopy)

7-15-13- NVC received AOS packet

7-18-13- DS3032 accepted

7-19-13- IV invoiced

7-21-13- IV Payment "In Process"

7-25-13- IV bill "PAID"

NOTE: Base on experienced from my previous immigration encounter, for I-864, eventhough, your individual income is above the poverty line of your household size and NVC approves your I-864, but  if you are married and filing jointly, your local consulate will  determine if you need form I-864A from your spouse. Because on my situation when I filed for my mom's visa, manila consulate requested Form I-864A from my husband when my Mom had her interview. So the visa was delayed for 2 weeks, but that depends on how quick you send their request. 

NEXT POST....DS3032

Update: Aug 7,2013, So after 18 business days  my brother got a checklist for his AOS-Affidavit of Support which I posted it here. NVC did not accept my own I-864. The were asking for our I-864a (husband and I). A household contract for Affidavit of Support. We mailed them the next day, Aug 8,2013  together with my brother's Immigrant visa application documents.

Aug 8, 2013- IV packet mailed.

Update: As of Sept 6, 2013, my brother's f2a case was completed at NVC.  We are now  waiting for interview schedule per NVC instruction

Update: Sept 7,2013- Made an expedite request through the assistant of our State Senator.
Sept 30,2013- Expedite Approved . Case File left NVC building this day.
Oct 2, 2013- Case "In Transit" to Embassy per CEAC
Oct 8, 2013- Case arrived at Embassy and CEAC says "Ready" for interview.
Oct 15, 2013- Phone call the US Embassy. Made interview appointment on the Phone.
Oct 17, 2013- One Day Medical Done
Oct 29, 2013- Interview