Auction lemons

Online auctions are often cheaper than dealers, and there are no pushy salesman.

But these buyers say it was an expensive gamble that didn't go their way.

Extra tips for buying online

Use a secure system such as PayPal.

Make sure the online auction website has a dispute resolution option.

If buyers feel they can't reach a resolution with the seller or auction site, they can report their case to the Australian Competition and Consumer Commission.