I wrote clean consise email and they responded next day.
they asked bona fide relationship questions.
1. Please show your passport.
2. Who apply for you?
3. You how to communicate?
4. Do you have photos?
5. You know how?
6. When he first came to China? Then the second time?
7. When you engaged?
8. When you get married?
9. The first time how long.
10. Why do you have the Chinese characters email.
11. His wives were U.S. citizens.