I travel regularly from Auckland to Australia but I've never had this experience before.
I booked return economy flights from Auckland to Melbourne.  Jetstar contacted me 2 weeks later to advise both my flights had been re-scheduled.  There were only 2 options for the flights to Melbourne.  Option 1 - I had to take a day off work (at my expense) or Option 2 - I would arrive after the event that I was travelling for.  Both options are ridiculous but Jetstar confirmed that was the best they could do.  I requested 100% refund due to their re-scheduling.  I now realise they have refunded me less their booking fee.  So I have now paid them to waste my time.  This is the first and last time I will deal with Jetstar.  NEVER AGAIN!!
    International  
  
    New Zealand-Auckland  
  
    Australia-Melbourne - Tullamarine