Initially good but frustrating

Checking with you now but hertz Did not hold the cars booked when our flight was delayed by 6 hours and we had to rebook with them through you Don’t understand why not given we paid and were arriving charged more and are trying to charge 75 euro for not bringing the car back 100% full when it was over 90% full and cost to top up would be c 10 euro

Initially good but follow up was difficult after hertz let us down Took 3/5 hours to rebook which was stressful