Spotlight on unwarranted warranties

Australians who think they've been duped by junk insurance and warranties are being urged to demand a refund from insurers.

The Consumer Action Law Centre says Australians have lost at least $70 million through junk insurance, with some unaware they bought the policy.

Holders of consumer credit insurance, gap insurance and used car extended warranties are encouraged to demand their money back by using DemandARefund.com, a web tool launched on Wednesday.