If its your cell phone download caller id block apps i actually use 3 that take care of these call.Whitepages app, Phone Warrior app and True caller app all on Googleplay.
Called me telling me I won a million dollars. When I told them I wasn't interested they tried to "confirm" my info to complete the so called registration. I prompty hung up without giving them any info.
This number called me today, 4/13/2016, a total of 4 times in a span of 3 minutes while I was at work.
The distraction was caught by my boss who promptly gave me a warning regarding the use of my cell phone and checking my phone too often and it being a nuisance to clients and vendors.
No message left by caller, but the sense of urgency worried me until I checked the number online and see it is most likely linked to a scammer. Don't bother picking up, even if they call you repeatedly within a short amount of time; it's NOT an urgent or emergency call.