I’ve just received (1500-Wed-21-Nov-18 Australian Eastern Daylight Time) an automated call about being investigated by the Australian tax office. They asked me to phone an Australian number +612 6176 1142. They may have my mobile number flagged–because each time i have tried to contact them, after a short time they hang up.
Anyone with a good call flooder may want to have a bit of fun with them
Good lock!
Fred