Jetstar cancelled my ticket without any notification

I booked the ticket on 20 November, everything is gone through, I had a ticket with booking number. On 23 Nov, I again paid for the seat booking. I received an email to confirm my ticket with a seat located.

On the 26th November, I couldn't checked my flight info. I chat with Jetstar customer care, they told me my ticket is cancelled. NO NOTIFICATION, NO CONTACT AT ALL.

WHAT A FUCKING HELL THEY DID TO ME?

A whole plan for Christmas and new year is fuck.

International
Australia-Perth
Australia-Perth