Motor vehicle insurance is the most complained about financial product in Australia. Credit: 7NEWSAustralia’s corporate watchdog has slammed the big insurers for making car insurance more expensive without telling customers why. WATCH THE VIDEO ABOVE: Insurers slammed for lack of transparency on car premiumsEvery year, Andrea Cosentino asks for a better price on her car insurance. “Many customers are paying more than they could or should for their car insurance,” ASIC commissioner Alan Kirkland said. Motor vehicle insurance is the most complained about financial product in Australia and the most common complaint is about premiums.