I got a missed call at 11.45pm. I didn't answer it because I didn't know the number & it was late at night. I let it go to voice mail. But there was no voicemail, just a hang up from this number.

Called, didn't leave a message Scam/Nuisance call.

Identified as "potential fraud". Phone not answered and no message left.

Repeat phone calls from (03) 9021 5995, (03) 9021 5965, (03) 9021 5921. Google search seems to indicate a solar power company

Suspected spam