I posted the full story about the experience I had with Jetstar earlier but have decided to remove it as I take things forward. Thank you to those who took the time to read it.
I find it very unfortunate that so many people can have such similar problems with one company. The worst part really seems to be the customer service over the actual faults themselves.
I really hope that someone from Jetstar can objectively read these complaints and make some positive changes to a company that many people would happily use were it not for so many people feeling like they were ripped off or treated badly.