They call at the most random times. Caller ID comes up as Delaware. They never leave a message and, when I call back, it's an automated message that asks me to Press 1 to be removed and then type in my phone number. After I type in my phone number, the message system reads it back to me and tells me that it's been removed. They'll wait a day or so and then call back. When I've been able to answer, the line is dead. Really annoying!