It’s an energy compare company, not sure of the name

Caller: Energy Wizard

The number came up as "Potential Fraud" on my phone.
They said they'd saved me money, so I asked them to email me evidence to my email. And that they should already have my email. They responded with they have many likes on some website, to which I responded that's nice, now email me evidence.
Apparently they are not allowed to email me! But they can call me!
I responded with "thank you for the call but you have been unsuccessful in helping me" and hung up.

Caller: Energy Wizard

They compare elec and gas bills and come back to you with a better deal, if there is one. I asked for a comparison and they called me back on this number......with a cheaper deal on my gas and elec. It's legit, although maybe a pest number if they cold call from this number.

Unsolicited call

Called three times today, didn’t leave any message. Annoying nuisance.

Caller: Phone identified caller as 'potential fraud'

I declined call

I called back the number (03) 9908 2705 and reached vm that did not mention the company name