This number is in a scam email purported to be from Ebay saying I had purchased something.

Received a call from a strongly Indian/Sri Lankan accented man who gave his name as Alex Peterson, who said he's from the 'technical department of windows' at 20 George Street Hornsby, tel (02) 8005 1526. He wanted to check my computer for problems, which he said if it didn't have at present, it soon would have (!) I have no problems at all.He firstly asked if I had a windows computer (curiously, after saying he called because the other arm of his company had given him my details as a windows computer owner) and he wanted me to sit at my computer while he confirmed the 'customer licence number' of it.I insisted on his details, as above, which enabled me to do this check at "who calls me", that has confirmed my suspicion of a probable scam.Thank you

disgusting support. actually no support at all. gives all free software and charge for no reason. my computer was working fine till now, till this guy gave the support my computer stopped working. i had to get a technician that costed me $200. these frauds charged me $235 for the support. these guys should be sacked from business. SCAMMING BIG. Report to police.

I just had "Alex Peterson" on the phone claiming to have recieved information that my computer had errors and if i didnt let them help it would stop working. I stalled for about 10 minutes just for the fun of it. He said he was from "IBO Soft Services" and contact number "(02) 8005 1526".When i said i would have to give him a call back he hung up.

Received a call from a strongly Indian/Sri Lankan accented man who gave his name as Alex Peterson, who said he's from the 'technical department of windows' at 20 George Street Hornsby, tel (02) 8005 1526. He wanted to check my computer for problems, which he said if it didn't have at present, it soon would have (!) I have no problems at all.

He firstly asked if I had a windows computer (curiously, after saying he called because the other arm of his company had given him my details as a windows computer owner) and he wanted me to sit at my computer while he confirmed the 'customer licence number' of it.

I insisted on his details, as above, which enabled me to do this check at "who calls me", that has confirmed my suspicion of a probable scam.

Thank you

what could this have done to my computer

This is a scam.

Their unsolicited call claims to be from a PC support company responding to reports of problems with your PC due to internet usage.
They want you to give them remote access to your PC to 'fix' it.

See --> http://techmysupport.blogspot.com/