[Otter74]

I suspect this is a variety of the text message phenomenon wherein you get what seems like a wrong-number text (e.g. "Hi Jack, are we on for golf with Barbara on Friday?") whose aim is to seem friendly and innocuous and lure you into a conversation in which eventually, a long time later, you are hoped to reveal personal information or send money or who knows what. A while back I found an article that had a great explanation of this (I'd been getting them from time to time, and they baffled me) but I can't find it. Before I knew what they were I had one or two brief conversations on WhatsApp and they are always ostensibly from young women in Asia.