Try to caLL NO. BACK NO MATTER HOW YOU PUT IT IN IT DOES NOT WORK. IS THIS LIGITIMATE

I keep getting calls from this number. They as for a Milissa Davis. There is no such person at my phone number. When I press 1 to talk to someone, I hold and hold and then I am disconnected. I called this number during business hours and get the basic recording, then "press 1 at anytime for a operator" I do so, and again I hold and hold. I just want to tell them to stop calling and that there is no such person at my number