12 years ago my brother has applied for me on I-130 petition. Recenteley we have received from NVC not that my case was approved and request to pay

f your F-4 sibling case has already gone on for 12 years, the priority date is probably close to or has already become current for final immigration. (Current visa availability date for July 2013 is May 22, 2001, for all countries except Mexico and the Philippines). After filling out the forms and gathering together the documentation requested by NVC, it would likely take a short period of time (usually three – six months assuming that the priority date is current or will soon become current) before you will be scheduled for a consular interview. Your sending in the updates on your history and your daughters should not unduly delay your immigration case. The fact that you are here in the US on a B-2 visa could permit you to file for an adjustment of status without leaving if the priority date is current on the F-4 petition. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.  

If you are in the US currently, you can file your approved petition together with the I-485 and adjust your status here, rather than go through the NVC and consulate to get your green card.  Your case can't be cancelled unless you fail to respond.  If you file for adjustment, which I recommend, then you should write to the NVC and tell them what you are doing.