NVC and USCIS letter! Who do we respond to?

[darlandta 0]

hello,

just a brief background: my wife was here on a tourist visa when i asked her to marry me last year. we got married and we filed for the I-130 in December and got approval February and we filed for her AOS in February. We got the NOA before her I-94 expired this march so she didn't leave. The next correspondences we got were from 2 different sources:

1) a Request for Initial Evidence from USCIS with one file number

and

2) an Affidavit of Support Processing Fee Bill Invoice and a Choice of Agent and Address Form from the National Visa Center (NVC) with a different NVC case number

Here are my questions:

1) Are we supposed to respond to both inquiries/ requirements? It's the first time I'm hearing of a fee for the Affidavit of Support. The whole time we've been dealing with USCIS and I don't remember seeing anything about NVC in the guides.

2) If we are supposed to respond to the NVC letter, do we then just use the address in the U.S. in the Choice of Agent and Address form so she gets processed here in the U.S. and that will update and fix where processing should be? For the I-130, the address we put for my wife was the address overseas 'coz we just thought well, that's where she was from before she became an immigrant, right?

3) If we are supposed to respond to both, does it matter who we respond to first?

Any help would be appreciated. I would like to see the responses here first before I call the NVC to ask. As of yet, i haven't responded to either but would like to soon so processing can move forward. Thanks, everyone, and God bless.