Caller: “Jack” and a supervisor who called me “so dumb” and a coward

“Jack called. Had my name and previous address and said he’d been speaking to my neighbours recently! When I told him I didn’t own that property he wanted to know about other properties I owned.
I don’t think it’s a scam but just very rude and unscrupulous sales people (though still may be a scam too). I pressed them for their details and found they don’t want to give details about themselves because once they do people choose to either talk to them or say goodbye, and it is usually the later. They call it “being tricky”. They want to hook you by talking about your personal circumstances and the current energy climate ie rising prices and then they tell you who they are (they are solar energy installations).
I spoke to a supervisor who filled me in on all this. He also called me “so dumb” when I suggested that when they call people they should share who they are and why they are calling you upfront. Which is funny because he said I was a coward for not having my caller ID displayed when I called them back (hang on mate, I’m a coward but you’re not when you aren’t telling us where you’re from and why your calling us?)!
Personally I don’t like their “sales technique” and if I want solar installations I go to people who are upfront about who they are and what they do. “Being tricky” is an approach close to being dishonest with the customer and I feel most likely this is how they’ll approach working with you.
So feel free to talk to, hang up on, block these guys as you think is right.

Caller: Rude and unscrupulous sales people, told me I was “so dumb”

Very rude and bad mannered sales people. Said a name (“Bob”) then said they had just spoke to my neighbours and spoke of my old address. I said I didn’t own that property and they were asking about other properties I owned. They didn’t say where they were from or anything, just wanting my information. I asked where they were from and how they got my information and suggested they start a conversation with people and what they are calling you for. They responded by asking me for more information and when I refused and wanted their details they said I was “so dumb” and didn’t know how these things worked, that they didn’t give their information straight out, that it wasn’t dishonest but was being “tricky” to hook and then the press people to their product.
I suggest you don’t talk with these people until they learn some basic respect for people they are calling and trying to sell their product to.

Caller: I dont know

For sure its scam

You say hello and they hang up ....I'm over this BS.