So weird??! It left a message as if I had been butt dialled. Sounded like a night club and two guys talking (inaudible) then a pommy girl saying “hey, how are you?”

There are reports that this is a call from South Africa. Definately don't ring back - likely you will get charged a couple of dollars your phone bill if you do - even if you hang up before it is answered. Definately don't talk to anyone if you do ring back.