They've called me many times. I dont use windoze either. I 'played along' with his spiel
for a while. Eventually he got irritated and IMHO, exposed his game. He gave the URL
of www.teamviewer.com, wanted me to download their remote access program, which I refused.
Definitely a scam.
They also use #s 626-555-0147 and 857-555-0168