A similar thing happened to me the other day as well (oddly enough, also in Australia).<p>I was buying a ticket for a football game, but just to make sure there wasn&#x27;t a better seat I clicked the back button on my browser to go back to looking at seats. Suddenly I saw that the same seat had gone up by 10% in price.<p>Anyway, I pressed the forward button to see if the new price would apply, but it didn&#x27;t. So I somehow avoided paying an extra 10% because their confirmation page was cached, but not the seat selection page.