Receivables Performance Managemet calls multiple times a day looking for someone who is not us. We have told them they have the wrong number but they continue to call. Furthermore, most times when they call and we answer, they put us on hold then hang up on us. We then have to call back to talk to a human. When we call back, about 50 % of the time, they hang up and 50 % of the time someone answers. This is extremely unprofessional and frustrating, especially when we have told them that we are not the person they are looking for. 
