Caller: Someone wanting to clean air-conditioning unit.

At 7.45pm?? What legit businesses tout for customers at that hour?

Is sus. Many calls and says hello and hangs up. A few hours woman does the same thing.

Called the first day on this number (08) 7083 8163 followed by the following day with a different last digit (08) 7083 8168

Rang my mobile and hung up, no message left. 4PM

This number called me unsolicited at 12:15 pm. I answered and could hear background noises, but then the call hung up.
I called back, and they answered but just said 'hello' - no company intro? I said that I had a missed call from this number, and then introduced himself as a Solar company - I said that I was not interested and ended the call. Sounds like a SE Asia call centre.

Some apparent cleaning company, cold calling me. Very thick accent hard to understand

Called at 7.20pm. I used "screen call" service and the caller hung up. Same thing happened (from same number) a few days ago.

Called and hung up when I didn’t answer at 5pm.

Called at 7:30pm but did not leave a message. I called back later and a heavy accent addressed me by my given name. But I did not recognise the voice - or that version of my name.

Blocked.

Caller: Unknown

Missed call from this number. Lady said hello, then hung up on me.

Looks like spam

On this page the number is shown as "Sharman Shelving". That company is legitimate but this is not their number.

Called at 6:45pm. Nothing legit calls at that time.