I would like to report Discover Cars and RentalPlus Olbia Airport regarding a prepaid car rental service that was never provided. Booking number: D013053684 The rental was fully prepaid (€273,48) for an 8-day rental period in Sardinia. Our pickup time was scheduled for 17:00 and we arrived around 19:00 due to our flight arrival time. Upon arrival, RentalPlus refused to provide the vehicle because we arrived more than 60 minutes after the scheduled pickup time. However, neither the booking confirmation email nor the rental voucher clearly state anywhere that arriving after the 60-minute grace period results in complete loss of payment without refund. The documents only state that: * the vehicle is guaranteed for 60 minutes, * and that the supplier may provide the vehicle to another customer if the renter is late. At no point do the customer-facing documents clearly state that: * the reservation becomes completely non-refundable, * or that the company may retain the full payment while providing absolutely no service. Despite this, RentalPlus and Discover Cars retained the full prepaid amount while providing: * no vehicle, * no refund, * no assistance, * and no alternative solution. The RentalPlus employee also refused to provide her name, refused supervisor escalation, and treated us disrespectfully. We immediately contacted Discover Cars support from the airport itself (ticket #6897797), but no real-time assistance was provided despite the voucher instructing customers to contact Discover Cars immediately if a vehicle is refused. As a direct consequence, we were forced to urgently rent another vehicle ourselves from Hertz for €768,99. After reviewing public reviews online, we found multiple customers describing nearly identical experiences involving RentalPlus Olbia Airport. We are requesting: * refund of the original €273,48 prepaid rental, * reimbursement of the additional €495,51 incurred for the replacement rental, * total requested amount: €768,99.