An unknown call received at around 4 pm on 17/3/23 stating, all too familiarly, it is from 'Australia' . These calls from a different mobile number each time, have become boringly frequent. Many now are ringing for a much longer time than the three or so rings they usually rang for. Presumably to create a sense of anxiety that "It may be someone urgently needing to contact me, I'd better answer it". I am therefore assuming this is a marketing or scam one.