Navient Debt Collection Complaint

Navient Debt collection department,

Cont'd attempts collect debt not owed Debt is not mine Nevada

I keep getting calls, including - this Saturday morning, -/-/2015, at -., from ( - ) -, a company called Naviant (? ). I have the same first name, but a different last name, different address, and different date of birth. I have never borrowed from the company and, even so, I am not behind on any payments to anyone. I have told them all of this, and they still keep calling. In any event, I thought they could not call before - I want them to stop calling me - I am not the right person!.