Who called from 5143854444

Just started getting calls.  When I answered the phone no answer and when it goes to voice mail there is no message.  I'm in NC, USA

harassing call from bill collector nco already paid for by another collection agency this company nco  fin  is harassing me for a bill that is already paid

NCO Financial Systems, Inc. 75 Port Royal East, Ste. 240 Montreal, Quebec, CANADA H3L3T1

These folks have called my number seven times in the last four days. Hang up when answering machine comes on.???????

they also work with local private eye agency and call to verify if someone is home or not without leaving a personal number behind. they also have an 800 number they use. if you call them they won't answer the call. you will be on holh. allan