Ex co-worker. Lost the plot!

Caller: Message for sara

Hi Sara I clicked on reply but unsure if this is wheee you type it. I’d love to know who that ex co worker was.

Caller: Some woman

An Australian woman’s voice. Sounded over 45/50 said ‘you called me’. This is a lie as I have not called anyone. Very suss and not sure why they are calling to check if I’d answer. Was suss if they knew a criminal who I’m a victim to or if it’s some scam. Either way they insist you called them and we all know you click on the missed call number so there is no way they could get it wrong. She hung up after I said no I didn’t as if she was checking to see if I would answer. Looking at the last entry for this number perhaps they are unwell. Either way it’s suss.