Problem With Computer Service Teche Support?

Has anybody heard of Computer Teche Support?
Well, today they called me 6x concerning me to purchase their service to take away viruses that were on my computer. But l later found out, that there was no virus on my computer, except the ones they were showing me, in order for me to purchase their servive for $ 169.00cdn.
They kept on harrasing me to purchase their service. I told them l’m not interested, and he answered me that l wasted his time explaining what the service is about. He later called many times and offered me a lower price, but l kept saying not interested. He then took control of my computer from his end, by moving the cursor all over my screen. So to teach this idiot a lesson, l typed in teche support, and beleive it or no, there was many bad things aboutb this website.That l should call the police after l’m done speaking to the person on the phone. He saw what l knew and tried to close at what l was looking at. l later unplugged my modem, until this person takes himself off my computer.
I want to know, if anyone has experienced such stressful moments, and how did you go about to have this person removed.