I lived in the Tianping community until I went back to the US in July. My new place is fairly close to there, but it's definitely different. Kauidi guys show up at Tianping 5 times per day (sometimes late at night), and call me. As far as I can tell, I haven't actually been charged any money for these mystery deliveries. I have asked some of the drivers what they are delivering, but they hang up on me. Blocking the calls doesn't seem to be an option because the phone numbers are always different. I'm curious: 1. if any of you guys have experienced the same; 2. what is going on; 3. if it is a scam, what's the objective?

This thread is more of a thought exercise than a request for help; talking to the drivers is only a minor inconvenience, and they are wasting far more of their own time than mine.