need some answer related to expedite appointment

[Alpha_Butt 0]

case type v-92

follow to join case

currently at Islamabad embassy

waiting for interview letter for 3 months

my father (petitioner) wants to expedite the appointment from embassy because of his health issues.

i searched online...

all i get is

i have to send email to nvc NVCexpedite@state.gov??????

as there are four case number 3sons & 1 spouse... should we mention all of them in one letter ????or separate letter for each one ???????

if anyone have sample or format  of letter 

kindly send me on ahmadbutt5432@gmail.com.

or you can share it here in comment

[SusieQQQ 11,586]

This is a little confusing. Your father is the petitioner - so you are the principal beneficiary? Are you already in the US and your spouse and sons are the follow to join? How does their coming solve your father’s health issue? How old are your sons? 

[Alpha_Butt 0]

sorry for the confusion 

my father is petitioner

& i am his son( also beneficiary)

& i am talking about my mother & brothers

Edited June 28, 2021 by Alpha_Butt

[SusieQQQ 11,586]

I’m sorry, I’m still confused, can you please clarify these questions:

1. What category is the visa ? F-?
2. Who is the principal and who are the follow to join beneficiaries?

3. What age are the minor sons?

4. What is the rationale for the expedite according to the categories listed here - especially as applies to all the family members? https://www.uscis.gov/forms/filing-guidance/how-to-make-an-expedite-request