Nissa Car Rental charged extra after return; how can I get a refund or fix this billing issue?

If Nissa Car Rental charged extra after you returned the car and support is not resolving it;

• Review your rental agreement and final invoice to identify the exact extra charges (fuel, damage, tolls, cleaning, late return, etc.)
• Compare the charged amount with the price confirmed at booking and the amount blocked/charged at pickup
• Check return documents, photos, or videos showing the car’s condition and fuel level at drop-off
• Verify the charge date and amount on your credit card or bank statement
• Stop accepting partial explanations or verbal promises without written confirmation

Contact Nissa Car Rental support again with a clear, final request;

• State that you were charged extra after the vehicle was returned
• Provide your reservation number, rental dates, pickup/return location, and invoice number
• Attach proof: contract, return form, photos/videos, fuel receipt, and bank statement showing the extra charge

Ask them to;

• Clearly explain each extra charge and the reason it was applied
• Remove incorrect or unjustified fees
• Refund the overcharged amount to your original payment method

If support does not reply or the issue remains unresolved;

• File a complaint on Xolvie to report unfair post-rental charges and unresponsive customer service and seek help getting a refund or escalating the dispute