Recording multiple variations of this number flagged as a suspicious calling pattern on my phone attempted to call back prior to blocking and continuously call fails. SCAM! Block and delete immediately

Person claiming to be from iSelect. Male was trying to give me details about new elecrticity rates that come into effect tomorrow and claimed that my energy company wouldn't have those details until tomorrow so they wanted to give me the rates now. I tried to get out of the call, but he was very pushy and got offended when I told him I could check the details myself and I didn't need his help. There was mention of money back and cheaper energy. He had my home address, I didn't provide this. I contacted iSelect who checked and no one had called me from there.
Called the number back and surprise, surprise it was disconnected