If you are getting calls from 877-455-7670 do not answer it, it is a scam and they are trying to get your personal information. If you do happen to talk to them, they will not tell you who they are unless you identify yourself first by giving them the information they are requesting. If you are on the National Do Not Call List, report them to the FCC or FTC. Also contact the State if you are on the State's Do Not Call List.