Same as others. Message said. Ours said this:

My phone just broke. So you can delete that number and save this one

Didn’t tell you yet but
I’ve lost all my files and images
I thought I saved everything on my iCloud but it hasn’t saved on there
It’s been the worse day ever haven’t been able to retrieve any of my files

WhatsApp message claiming to be from a family member stating phone had broken and to contact on this number. Family member had no knowledge nor broken phone.