I received a call from this number telling me they were getting error messages and that I had an infected computer that could crash at any time and then I'd have to buy a new computer.  I could barely understand the caller due to his accent.  So he transferred me to another technician  - - I was stalling to find out what their scam was.  The insisted they were legitimate and gave me this number to call them back . . . which I did not do!  Don't know what they want, but they won't get it from me.