Harassment 24/7

Harassment, Harassment, Harassment in the worst form. They call 10 times within 1 hour. Call 10 times on cellphone, call 10 times on work phone. I have told them numerous times that we are not allowed personal calls. They don't stop. They call 7am and even on a weekend until late at night. I have never come across such a company performing such harassment. I have told them that my debt has been handed over to a mediator, but they still call. I cannot take this anymore. If this continues, i am going to lodge a complaint at the police station for harassment. I have had enough.