I made a domestic Qantas Red e Deal booking for 6 people but now one person has to change the date. Looking on the website, it seems I have to separate this passenger from the booking and then change at a cost of $88 (the new flight date is the same price as the original). I've never done this before and thought I'd check first just in case there's any way to avoid or reduce the fee. I originally paid using a Qantas gift voucher.