Other Fuel System Tank Assembly problems of the 2017 Toyota RAV4

My car was bought new on June 24, 2017. It had two times serious gas leakages. 4/29/2019, 1st. Time, mileage was 9,967, I paid $837. 72, for replacing the �charcoal canister� and I was told it's not under Toyota factory warranty by Toyota dealership & headquarters center in dallas, TX. 7/01/2019, 2nd. Time gas leakage, mileage was 10,691, my car was towed to the same Toyota service for the same gas leakage issue again. . . Finally, Toyota replaced �charcoal canister� for the 2nd. Time, and other system associated with the gas leakage with no charge. Both gas leakage are all the same, 60 days apart, were all from the rear, bottom, driver side of the car, there was a gas puddle on my inclined driveway. After I checked Toyota owner's warranty rights notification booklets - federal emission control warranty � �charcoal canister� is clearly under Toyota warranty parts list � within 3 years or 36,000 miles. Apparently, Toyota Rav4 hybrid model -�gas leakage� caused by defected evaporative system, can't parking on inclined or uphill driveway with more than half tank of gas. I called and sent two claim letters dated on 6/25/2019 and 8/26/2019, request Toyota refund my $837. 72 � for 1st. Time repaired cost that paid on 5/7/2019. Toyota has declined my claims, refused refunding my payment of $837. 72, we are very disappointed with Toyota's unethical, fraud notes on the invoice � so called �gas is overfilled�. Toyota shirks the responsibility to the customer in order not cover the vehicle defective. Intentionally violate their warranty policy. We have been wrongly, unfairly treated. So we ask the NHTSA, please investigate this matter, monitor the Toyota correct their mistake, and refund my $837. 72 ASAP. There are some other similar gas leakage claim cases of the Rav4 hybrid model. It's very danger to drive with the gas leakage, can get fire. Justice is matters.