fake immigration call in Chinese

this is the second time they called me i know many people in perth but not under this number

Number was blocked automatically by Google as potential fraud. Currently have a brand new number that hadn't been given to anyone else and unsure how they got my number. Likely random cold calling and hoping for an answer.

I didnt answer cause I dont know anyone in perth. If they call at the same time again tomorrow I am betting its one of those stupid political cold calls that pester you until you answer and you have to tell them to stop ringing you. (which still doesn't work)