DTV application "canceled" (denied) because of incorrect passport expiry date. This was my wife's (dependant) application, evisa done in Shanghai. Already paid so we lost those 2400cny, about $340. Ive seen others been denied because of wrong name spelling, but keep in mind also other details need to be correct.
And if you upload your passport after you've entered these details then the form details are overwritten with what it reads from the passport, and this can be wrong. I don't know what happened in our case. Maybe the day/month was swapped or something like that. We didn't notice it when looking over the application before submitting. It feels a bit unfair that these small details makes you lose the whole visa fee. I'm glad we didn't pay 2M bath for the elite visa! (I know that's not handled like evisa)