NCO keep leaving messages with no name attached to them, only a phone number. When called, you get a message saying they are closed and the mail box is full and you can't leave a message.
We have no debts that are in collection, so I doubt the calls are even for us, but since they don't say who it is for, we have no idea who it's for. They call every day at all hours, and say to call them back that day, even though their office is closed.
I don't know how to get them to stop.