Did not leave a message came up as spam Telstra is blocking it

Left a 52 silent message... assuming a spam call

Caller: Scammers

These guys are cheeky. (First, they came to our front door.) Then they called; they knew my first name, and said they were going to be in our area to fit 'free door sealers' as part of a government incentive. I told them that they would need to go through our real estate or landlord to get permission; they said they already had done that. I then said that I need to hear from the real estate directly before they proceeded; they then got rude and started talking over the top of me, trying to convince me to let them come to my house. I immediately hung up and blocked the number. I then contacted my real estate, who confirmed that they had not been called, and would never approve any changes to our home without notifying us first.

Caller: Greywall Services

These calls fit multiple call types, scams, nuisance calls, unsolicited calls etc...
According to the caller, they are called Greywall Services.
The idiot calling was trying to offload Free energy saving devices. They asked for someone else this time, but every other calls they knew my Christian name.
This is a scam in my books. No idea how they get their money, but these punjis wouldn't be doing what they're doing without making a profit.
Last time these idiots called, I let them come to install the door draft seals, as ,as I understood it, it was like a door snake, but when the dopey punji had a look, he said that we already have the door seals. It turns out that the seals are those self adhesive felt strips that you can get from any hardware, or $2.00 shop for a couple dollars.

Called and when I when I asked who they were replied ‘oh my god, stop asking questions and confirm your name’