等了好几个月没消息，想让我帮他问问背景调查进程，我可以帮他问吗？应该打哪个电话呢？
-Noboday can do anything about the background check. But you can contact NVC or the US Consulate in Gunagzhou for the case status, depends on where the case is pending at present.
Here is NVC contact infromation:
https://travel.state.gov/content/visas/en/immigrate/nvc/nvc-contact-information.html
Here is the US Consulate in Guanhzhou contact information:
http://guangzhou.usembassy-china.org.cn/contactiv.html
