I called back number (02) 6145 0844 spoke to a guy who said I've reached Amplifone.

Called my mobile, I said "Hello", but could only hear a bit of chatter in the background and the call dropped. Sounds like an unsolicited call, won't be answered again.

Caller: Amplifone

Serial pest. Keeps calling my work number over several days.

Two missed calls from this number. On first occasion, I rang back and man asked if I wanted a hearing assessment. “No thanks, I have my own audiologist.” Called again a few weeks later. I’ve blocked the number.

Called and hanged up on me?