BEING HARASSED FOR PAID UP DEBT

THIS COMPANY KEEPS CALLING ME FOR A PAID-UP DEBT THAT THEY PURCHASED. THEY REFUSE TO LISTEN AND DRIVES A PERSON TO LOSE THEIR TEMPER. THE PEOPLE WORKING THEIR HAVE NO IDEA WHAT THEY ARE DOING. THEY FOLLOW NO AUDIT TRAIL. I HAVE REQUESTED COPIES OF ALL THE PHONES CALLS MADE TO ME AND TO DATE I AM STILL WAITING FOR THE CALLS. I WOULD LIKE TO USE THESE RECORDINGS AS SUPPORTING DOCUMENTATION AS I WOULD LIKE TO LAY AN HARASSMENT CHARGE AGAINST THEM. I WOULD ALSO LIKE TO USE THIS INFORMATION TO LAY COMPLAINTS WITH THE LAW SOCIETY AND DEBT COLLECTORS SOCIETY AGAINST THEM. I HAVE REQUESTED THEIR REGISTRATION NUMBERS BUT HAD THE PHONE SLAMMED DOWN ON ME. I HAVE SPOKEN TO AT LEAST 20 PEOPLE FROM THIS COMPANY.