Caller: Claimed to be from Telstra

Indian lass, said she was from Telstra, there was a problem with my internet connection and she wanted to help me fix it. (Always be polite and professional). I asked for a billing address to charge 'Telstra' for my time to help resolve the problem. Got a billing address! But given a WA postcode 6105 for a Sydney 2000 address (now suspecting she may not be legit Telstra). Asked some general questions and got wrong answers (now certain she's not legit Telstra). Sad voice - told her she was a very naughty girl for trying to trick me. Suggest she give up her life of crime and have my children instead. Call got disconnected - possible bad line.

Caller: Told me that they were from Telstra

Told me that someone was using me internet without my knowledge, and they would help me fix it, bu.t want access to my system
I told them that I was recording this call - I also told them that they were not from Telstra and that I would be reporting this phone call. She angrily told me to shut up.