Worst airline EVER

I have been planning this holiday for a few months
It was a well deserved and earned break to Bali Indonesia.
I booked it months in advance for a good price to leave today 19/05/2019 and includes my birthday.
I woke up today to the news that my flight was cancelled due to engineering problems.
I have used their web chat with 2 people and the customer service response from them was appalling. Both of them thought it was appropriate to say they were sorry for the inconvenience and that I could either reboot it refund.
I went the reboot route as it was the easiest for me.
So now I will leave on the 21/05/2019 losing 2 days of my holidays.
I asked one of them for a refund on my lost accomadation and she said they don't accept liability for this . I would have used my insurance but after the excess was paid it wouldn't have been worth it.
I then asked nicely for a upgrade or voucher and she said Jetstar don't offer this.
Thanks Jestar for becoming the worst airline In my eyes.
YOUR bloody inconvenience has cost me money and a well earned rest.

Flight JQ37 19/05/2019 is my flight no if you think you may want to salvage your reputation .

Indonesia-Denpasar (Bali)