Early last month I purchased 2 Qantas Tallin-Sidney tickets from Travelocity at US$375 each (obviously an error, as the price now is approximately US$5,300). I now find I cannot travel during the dates I scheduled and called to change the tickets, which have a YRT booking code. I was told I would now have to pay the current prevailing price for the tickets. Can anyone advise me if there is a way I can change the tickets and keep the original price?