帮哥哥申请I130 (Immigrant petition for relative,fiance,or orphan). 我是2006年提出申请的，我received an approval notice from USCIS two days ago. It says that "The above petition has been approved. We have sent the original visa petition to the Department of State National Visa Center (NVC)."
信上还说"please allow at least 90 days before calling the NVC if your beneficiary has not received correspondence from the NVC."
Q:
1）一般还要多久，哥哥可以收到领事馆的通知？
2）公民申请哥哥不是要12年吗？由递表到现在，我只等了3年。我查过USCIS 的网站，哥哥的STATUS 没有变，但我却收到了APPROVAL NOTICE. 是闹剧还是真的？