Revv — provided car in bad condition and trying to push repair charges on consumer

Rented a car from revv. Horrible state, unclean, engine light on. Talked with customer service multiple times and they did not do anything to help other than apologize. Car eventually broke down mid trip and they ask us to pay for tow and repair. Now they have sent an invoice with extra charges and are not refunding the security and fuel that they were supposed to. Horrible experience.