Same happened with me. In fact, they call every morning at 8:45 a.m. and then again every afternoon.
I did a *69 and they said they were a Contour Adjustable Bed company. But when I did a reverse lookup, it says that number is owned by Broadwing Communications, LLC, in Queens, NY.
Going on since over 3 weeks. Same number, no name, "unavailable" showing on the Caller ID. The minute my answering machine comes on, "they" (he, she, it) hang up. I called back, no co. name, once a female, another time a male.