Repossession: Vehicle loan or lease

I reached out to the company and requested the following info with no response from them : 1. Notification before Disposition of Collateral ; 2. Timeliness of Notification before Disposition of Collateral ; 3. Contents and Forms of Notification before Disposition of Collateral ; 4. Explanation of Calculation of Surplus or Deficiency ; 5. Copy of the Retail Installment Sales Contract ; 6. Account Payment History