So, back in November of 2016, I received a call from people with indian accents claiming that they represented windows and that they detected problems on my computer. I had heard about these kind of scams, so I didn't believe them at first. So I asked them a few questions to "make sure" they were legit. But long story short, they were allowed remote access to my computer and showed me that there were an excess amount of hackers and viruses on my computer. They suggested a few packages to fix whatever the problem was, and I chose a $90 dollar one that I would pay in 3 installments. They even gave me a confirmation code so that if they called me back I could be safe, which made me think it was legit. However, they haven't contacted me by email even though the payment was supposed to be due already. I looked up virus scams and found out that it's rare that companies randomly cold call non-clients, so I'm suspicious about that. The website is www.goinsta247.com, and they were called Insta Solutions (Though I also looked up insta solutions and I was taken to an entirely different website.) So is this a legitimate company or have I been scammed? And furthermore, should I continue to pay for whatever service I signed up for or should I cancel my card to prevent identity theft?