One year on, Wallis' attempt to use his flight credit for his preferred flight was rejected, because all seats available for "Future Flight Credits" had already been allocated. Virgin Australia has put quotas in place restricting the number of Future Flight Credit fares per flight. Those holding "Standard Credits", issued after the airline's purchase by Bain Capital, are not subject to the same quota. Wallis, of Malvern in Melbourne, said: "Naive me, I just thought if I had a credit, that could surely have been used on any class of ticket, at any time. It was just my money. "Instead, I was informed that I could not use this credit on a preferred flight from Melbourne to Darwin, because 'all the credit bookings on that particular flight had been secured'. This, in spite of there being seats available.