Number called and did not leave a message

Calls at the same time every weekday. I suspect the company that uses this number to redirect calls also purchased (08) 9321 7926, as I get calls from that one at the same time every weekday in the afternoon, and the former every morning, and they both started on the same day. Have not listened to the robocall message for more than a second, so I don't know what it's actually about, I hang up as soon as I realise it's an automated call. Haven't blocked these numbers yet but probably will soon given they are making a habit of this.

I called back number (08) 9481 7926 rang once then gets disconnected automatically.

Seems like whoever owns this number as a "mask" for their robocaller also owns (08) 9321 7926. Calls at the same time every weekday, I have never listened to the actual pitch itself, just hung up.