Didn't answer, left no message, blocked them. From comments above it sounds like a scam.
Other
Recent comments:
1
Mar 30, 2017
3 rings and hangup
Other
2
Mar 30, 2017
CallerID says "unknown name". Left no message.
Other
3
Mar 30, 2017
Call everyday and never leave a message Caller ID states Unknown Name. Since I do not recognize the number I refuse to answer
Other
4
Mar 30, 2017
this company called me and upon answer lead me to an automated cheerful girl who rambled on about me getting a vacation if i confirm i was 28 years old and had a credit or debit card. when it asked me if i had one i proceeded to say f off then i hung up. if i get another call from them again i'm reporting them to authorities