One of those mistakes we might make during our visa process is waiting. It is true that you can't do much to speed up the immigration visa proccess itself but you can track your case, make few phone calls and write few emails to ensure your case is still under process, smoothly. We've collected some handy official site's information for you to use at anytime. Simply bookmark the page so next time when you need it, it's just one click away.

USCIS official website
There, you can find forms you needed and fees you need to pay. And of course more official information that might help you go through the process.
Tel: 1-800- 375-5283 (Best time to call is Tue. - Fri. morning.)

NVC:
Tel:603-334-0700
Email: NVCINQUIRY@state.gov NVCA@state.gov (This is an auto email system.)

Mailing Address:
The National Visa Center
32 Rochester Avenue
ATTN:WC
Portsmouth NH, 03801-2909
Fax: 603-334-0791

DOS:
Tel:202-663-1225 (This number you might use for few times during your entire immigration proccess.)
Email: usvisa@state.gov
Address:Visa Services, Bureau of Consular Affairs, US Department of State, 2201 C Street NW, Washington DC, 20520

Others:
Congress /Senate /House
We suggest you get contacted with your congress man, senate man and house before your case even started. For most cases, they can't really help you speed up, but some of them do work hard for their people. It's never hurt to give a try.

For more information such as most recent status updates , communication & evidence tips, please check out our info center.