a 2 year old costs $435

In April my wife bought tickets Melbourne-Newcastle return for herself and 3 children for $497. Because the website is unclear and because the 2 year old sits in mom's lap, the 2 year old was bought an infant ticket. On 1 July at the airport Jetstar refused to board the 2 year old. Jetstar brow beat my wife, who's an immigrant and whose English is iffy, into choosing between loosing the $497 of tickets already paid for, leaving the 2 year old behind, or paying $435 for the 2 year old. The bastards even tried to make themselves out as generous by first demanding $600 for the 2 year old. Bait and switch seems to be the name of the game with Jetstar, something that would be considered grossly illegal in any other area of the economy.