I get calls from this number at least twice a week trying to sell me some security system. I have told them repeatedly to remove my number from their call list, have called back myself to remove the number, demanded to speak with a supervisor to ensure that my complaint had been heard and the representative would either hang up or refuse to let me speak to anyone else and "promised" they would remove my number themselves. 4 months later, I'm still trying to get rid of them. What makes it worse is that they won't even identify themselves at all so I have no idea what company is calling!