4 hours delayed + rude customer service

So my flight was originally 10pm tonight, got delayed to 1am, then 1:30am, then 2am.
I have no clue as to WHY it was delayed on so many ocassions.

The worst bit is i called customer serviceat 8am to verify when my flight was scheduled. I told them I got a SMS for 1am, and they told me they dont have any info regarding a delayed flight and its still scheduled for 10pm. Reached the airport to find out that it was in fact delayed. Called them again, this time their phone CVR service said 12am, however everything else indicated 1am.

To top that off, had to talk to an idiot consultant who was freaking rude and non apologetic about the delay or anything. I was telling him about how the CVR recording for their phone system was giving wrong information, then i asked if he knows what a CVR is, and he responded, "yes, do YOU know what a CVR is?" After i had a go at him, i told him he has no good customer service skills, and he responded that he was the best one there. I seriously will never fly Jetstar again after having to deal with such monkeys.

Cabin crew staff are fine, but this philipino idiots think their so awesome and above customers, when all they have is a shit job and Jetstar will burn with staff like this.

Domestic
Australia-Hobart
Australia-Melbourne - Tullamarine