Be careful when traveling Jetstar. They seem very happy to slug you excess baggage at the gate, even if you have not used your allowance. I was slugged excess baggage because I had carry on, including a laptop, which together exceeded the carry on limit. I saw others on the same line allowed to take out their laptop so as to not go over their limits. When I asked the attendant I was given a customer care card and told they can help me.
Even more frustrating is that I had 20 kg for checked in luggage which I had not used.
Anyhow.... lesson learned from me. The customer care agent simple couldn’t or didn’t want to refund me, despite thinking it was odd.