Here’s how this syndicate work. You receive a phone call, then you will hear a little girl’s voice crying for help, speaking in Mandarin calling out ‘Mama, quickly come to rescue me”. And if you respond to them, they will act as if they have already kidnap your child and probably will proceed to ask for ransom.
This is a true case happening to a few of my colleagues already. So if you ever receive this kind of call, quickly hang up and do not talk to them any further.