"Senior Benefits" phoned my house at 04:00AM! No message left. I will not call them back, as I don't want to give them the satisfaction that they reached and irrrrrritated someone.
My caller ID showed "MRK RCHGRP" and "458-201-0161". They did not leave a message on my answering machine but instead hung-up after about 4 rings. No further info available.