Saying they are Telstra and problem with my computer. Keep calling even though I have told them to stop.

They said they were calling from Telstra's technical department. I was informed that my internet connection was going to be cut off. I'm not with Telstra.......

Male person called at 21:30 said he was from Telstra internet and that he had noticed viruses on my p.c.

these bozos keep ringing, if I answer I can hear the sounds of a call centre but as soon as I speak they hang up. I only answer the phone to see if I can make contact with a human and tell the little piece of excrement exactly what I think of them.

Answered phone no one on the line
Probably dodgy as they all are, why have a landline any more??!!!!