spoke mandarin, couldn't follow what he said but did hear him use a couple of insults using the Chinese phrase "ni de bi" when I asked him to speak English.
先whatsapp留言後再致電另一來電,似用網絡黑客方式查手機資料致電,專業騙徒手法
leave a message on whatsapp before calling another call, like using a network hacker program to check the phone information and call, very very professional tricks