It is rarely that I have posted in any forum and did not even know this one existed, so it is a surprise to have received replies already and helpful ones at that.
I am sorry that you, true indian, feel that all this is in some way a reflection upon your country, because here I have sometimes received very good and sometimes very bad service from English people. Even so, it may well be no bad thing for iJogi to learn that you feel that way.
Helping a friend years ago who had fallen into a trap set by an outfit that regularly calls from Florida to telephones in the UK, I learned that once a payment from a credit card was authorised by the holder of the card, the card issuer has to allow payment to proceed.
However, if you can prove misrepresentation or breach of contract the card issuer is equally liable to repay the card holder, though they are likely to insist upon strong evidence.
Taking brief legal advice today on this case it was suggested (no more) that if it were not necessary for a computer to have regular servicing and I had been persuaded to buy a service on the basis that it was necesary, then I might have a case. I thought it tricky to pursue that line anyway unless I had recorded the conversation!
When I surfaced eventually today my first visit to my PC was to check whether there was any reply to the email that in the early hours I had sent to customer service@ijogi.net but there was not.
In it I had explained the circumstances that had brought me to iJogi in the first place, what went on in the hour and a half that their technician had control of my computer, and what I discovered on the web later that convinced me not to allow the "servicing" to continue that was not the reason for my being transferred to them by Avast in the first place.
I ended with "Therefore, I do not want to proceed with the purchase of iYogi 2Yr for AVAST and, therefore, I hereby cancel my authorisation of a payment of £188.99.
Please confirm your acceptance of this cancellation immediately. A copy of this email is being sent to my Credit Card company."
(I am not really clear what their terminology includes "...for AVAST")
Still no reply by 19.00 today, but then customer services called me from India, just as I was looking at the website that gives the address and contact numbers of their head office in Canada and wondering whether it would be worth sending a copy to them.
Another long conversation - ten or fifteen minutes at least - pressing me to explain again and again why I wanted to cancel the contract
(I mentioned this forum as a place to look), why was I dissatisfied, why would I not be interested in continuing if they gave me an additional three months plus six months cover for a second computer. The latter was also offered by the technician who talked me into signing up, but neither mentioned that the only brands they support, according to the website that was still in front of me, are Dell, HP, Microsoft & Samsung. No other computer I have beside this Dell is of any of those brands.
Finally, I pointed out that if at a later date I did become convinced that the type of servicing they offered was worth while, and the best deal available, there was nothing to stop me joining then. Putting her on the spot I asked whether she the authority to cancel my authorisation and, if so, was she going to do it. Otherwise I would be writing to their Head Office with a copy of the email.
The answer was that the money authorised will not be taken or, if it is, it will be refunded within 2 to 5 business days. I was given a confirmation reference number and, at my request, promised that would all be confirmed by email. It was. So need to contact anyone else it seems. That was an hour or two ago.
Also included was "Please take a minute to provide us feedback which will be instrumental in improving our service." Any succinct contrbutions that I might include???

I am in no hurry to reply to that!