Scam. Harrassing someone I know with no outstanding collections.

ARO Collections they call everyday - 3 times a day looking for the person who had the the number before. They rude and demading to speak that person I keep telling them i am not that person and say that if they keep calling  i will call the police.
they keep calling

they keep calling are rude and unprofessionalfor t, i have no debt that they could be calling about  i ask them to stop they call more.

I have gotten several calls from these people who insist that I have a past due account. The problem is I have never had the credit they are saying they are collecting for. I called the company who supposedly referred my file to them...they have no record of my SIN number with them. I have been in contact with the credit bureau they say no such bill exists for my SIN number. So i call these RFO people back and relay to them that I have no account with the creditor they are "collecting" for, I informed them I had spoken to Equifax and that they didn't find the debt either. Finally they conceded and decided maybe they were calling the wrong person, and they promised to stop calling...They are still calling...I just stopped answering.

Somehow they got my cellphone number into their system.
I get calls on the weekends when I am on call.
I've asked them to stop, but they haven't.
BTW - I am not the person they have on their file.
I'm guessing some brain dead employee put down the wrong phone number.

Calls me at all hours. When I answer they ask for someone else and before I have a chance to tell them that person is no longer at this number they hang up! Very rude and unprofessional.

They called said nothing and hung up googled the phone number to find this I know who ARO is my brother when I lived with him got phone calls from them all the time. I wanna know why they are calling me