JETSTAR IS AN ABSOLUTE JOKE!!! It is unbelievable how Jetstar continues to screw customers over!!! ABSOLUTELY PATHETIC!!! First they try to charge me a change fee of $330 after they cancelled my original flights and now they won't even issue a voucher for the full amount of $541.20. Then they say I also have to pay a fare difference if the flight costs more on top but they won't give me a credit if the fare difference is less. So basically Jetstar just keeps the difference in fare if it is less as a profit but then charges customers a change fee and the fare difference if it is greater after they have cancelled my flights!!! JETSTAR IS THE WORST AIRLINE IN THE WORLD!!! YOU SUCK!!!