What is the next step after your two payments to the National Visa Center when applying for your residency?

There is a different procedure for those who are physically resent in the U.S. Also, do you have 245(i) protection? Please work with a lawyer to determine whether you qualify for adjustment of status.

If you are in the US, you should not be dealing with National Visa Center, but rather, adjustment of status with USCIS. If you are doing visa processing, you will need to leave the country, but since you have been here illegally over 6 years, you will trigger a 10 year bar against you. You need to speak with an experienced immigration attorney about this.

The next step is to submit certain forms and documents so your case can be scheduled for an interview. I strongly suggest that you consult with me or one of my colleagues first as it appears that you are ineligible to adjust status in the us because of illegal presence and will need a waiver. BUT, we're expecting the rules on provisional waivers any day now. This program, if passed, will allow certain people to apply for the waiver BEFORE they leave the country. If you submit documents to the national visa center and are scheduled for the visa interview, it is very likely that you will not be able to take advantage of this program. There's much going on in your case and you can make some serious mistakes if you don't have that consultation. I assure you that the consultation fee can save you so much more in the long run.