Documentary proof? Wtf?
Have you got them saying that in writing? If not ask them for it. If they were stupid enough to supply it, thats all the ammunition you should need for a succesful credit card chargeback.
The airline have changed the flight times, it no longer suits you, end of discussion, full refund.
Thank you for contacting us today. Please see below for the transcript of the chat between you and our team member on 3/06/2021.
( 13m 58s ) Agent: Hi, my name is Agent. How can I help you today?
( 14m 24s ) FortunateCrow: As follows you have changed my itinerary to times that don't work with my travel plans. Can I please have a refund? Your email dated today re REF "Your new flight details are as follows: Passengers: FortunateCrow Date Flight From Depart To Arrive XXAug21 XXAug21 JQ 438 JQ 443 Melbourne-Tullamarine Gold Coast 10:20 17:10 Gold Coast Melbourne-Tullamarine 12:20 19:35
( 17m 4s ) Agent: Hi FortunateCrow, I'm really sorry. I know how frustrating it is when plans change especially when it's out of your control. Let me check this for you and let see how can I assist you.
( 18m 28s ) Agent: Thank you for waiting, I understand how inconvenience is this however upon checking here we can only process a refund or voucher to your booking if due to the changes the purpose of the trip has been voided. Are you able to send a document that the purpose of trip is void?
( 21m 8s ) FortunateCrow: **Jetstar** changed the times of my flight. I didn't do anything. Because you changed the times of my flight it no longer fits my plans. Please refund or I will make a formal complaint to the Airline Dispute Resolution Ombudsman…
( 25m 56s ) FortunateCrow: I don't care why you made the changes but you did and it affects my plans. Please confirm I get a refund or I will direct my complaint to ACA
( 27m 53s ) Agent: I'm so sorry that your flight has been affected by a schedule change. However, Jetstar does not guarantee it will be able to carry you and your Baggage in accordance with the scheduled date and time of the flights specified. Schedules may change without notice for a range of reasons including but not limited to bad weather, air traffic control delays, strikes, technical disruptions and late inbound aircraft. Flight times do not form part of your contract of carriage with us. This is indicated on the terms and conditions that you have agreed upon purchasing the flight. We do not mean to obtain sensitive/personal information, however, you are asking us something our of the fare rules that you have agreed upon. In order to make exemptions or review your request, we will need more information. Should you wish not to share it, we will fully respect that. However, as mentioned, because you have agreed with our terms and conditions, the option that we can give you for this booking is only a free move to the flight immediately before/after your original schedule. Whatever your next course of action is, would be something we won't have control. We will take it with respect. From our end, we had complied with our legal obligation.
( 33m 1s ) FortunateCrow: You refer to bad weather, air traffic control delays, strikes, technical disruptions and late inbound aircraft. Those are things that happen at short notice. Of course people make allowances for that. **None** of those things have happened. Jetstar is changing the schedule because it suits Jetstar I have a business meeting scheduled for Thursday morning that I now won't make because you shifted my flight time….