WOW Trevor, that's incredible!
i've not had that call yet.. but thanks for the warning
I had one the other day where this woman was telling me 'they' had been testing the water in my area and apparently they found more than 50 chemicals in the supply. I'm in WA yet the caller was from (07) ? I should have asked her 'what area are you referring to then'... i'll save that for next time
I promptly told her I'd worked for the Water Corp for years and I disbelieved her speal. She quickly informed me that 80% of the Water Corporation employees use their magic filter
i just laughed and said "love, you're barking up the wrong tree" and hung up.
there is a website called "donotcall" where you can register to
not be contacted...not sure if it works but might be worth a go if you're getting a high number of calls a day.
https://www.donotcall.gov.au/