Firstly your profile shows CR-1/IR-1 so I assume this is visa fee bill from NVC. From recent posts NVC is taking payments online, that can save you some time.
https://ceac.state.gov/CTRAC/Invoice/signon.aspxNote, visas from the consulate in China is not a quick thing, once the petition leaves NVC you are looking at 3-4 months until consulate sends packet to spouse in China.
Also since your profile shows CR-1/IR-1 this post has nothing to do with K-1 visa process, post should be in CR-1/IR-1 forum.
Lastly for great support for understanding consulate in China, you may want to use "A Candle Love" that site specializes in Chinese immigrations issues.
http://www.candleforlove.com/