Linebarger Goggan Blair & Sampson, LLP Debt Collection Complaint

Linebarger Goggan Blair & Sampson, LLP Debt collection department,

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

I received a second notice from a law firm in - alleging that I owe the - - # - for non-payment of a road toll. In the second notice they say I did not respond to the first notice, when in fact I did respond to their first notice. In my written response I told them the debt was not mine and explained why I did not think so. I also called the collectors to explain but they insisted that I provide proof. Do I have the burden of proving their allegations are false before they will stop their proceedings? I live in the - - - -. This is a toll for a roadway near -. No car I own has been close to it.