Okay so I called them back again after 3 hours. Wasted 1 hour of the scammer's time and made him do extra 35 minutes of overtime ( They stop scamming at 5am Indian Standard Time). For an hour I played dumb again and forced him to download Teamviewr. Had to go through a lot of stuff, anydesk,supremo etc. I was this close from getting his tv ID and syskying him but he said scamming time is over and he'll call back. Oh and he did give me his website. www.1234computer.com. Whois shows nothing useful and the website is down. But this call centre,if it is affiliated to that website, then they have been scamming for many many years. I don't think they will change their number because I have been calling them for over 2 days on 1 number. So if I get more info, I will post here tomorrow. Hopefully my dream to syskey a scammer becomes true!