They rang and knew my name !! I couldn't talk at the time so said just text me, I presumed it was someone I knew.
When I was able to talk I rang the number back - 98058700 - and a message said the number was not connected.
Obviously a scam of some sort.

They keep calling me but I returned call says. Number not connected.probably spam Nigerian. They don't want accept calls

I called back number (02) 9805 8700 it says the number I have dialed is not connected anymore.