England fans fear they may be left at the mercy of touts if Cricket Australia press ahead with plans to restrict ticket availability for next winter's Ashes series.
England's unexpected 2-1 series success last summer has prompted unprecedented interest in next winter's five-Test series.
Ticket details were due to be revealed yesterday, but Cricket Australia postponed their announcement amid rumours they are planning to restrict the number of tickets available to England fans at each venue to boost the chances of enjoying partisan home support.
Paul Burnham, spokesman for England's 'Barmy Army' supporters, is sympathetic towards Cricket Australia's aims but believes it will result in a black market springing up to exploit those travelling fans not on organised tours.
"The only time we've been faced with this before was in Barbados a few years ago, and it ended up with everybody getting into the ground because the tickets were sold on to the English fans," said Burnham.
"If they open it up for every Australian to buy tickets a lot of them will buy them and then sell them on at an extortionate level.
"We're hoping Cricket Australia give the independent supporters and the 'Barmy Army' an allotment of tickets, and we can assist in making sure ticket touts do not exploit the situation."
An estimated 40,000 England fans are expected to travel to Australia next winter in the hope of seeing Michael Vaughan's side retain the Ashes.
Unlike two years ago in West Indies - when they were forced to pay a tourist levy but still dominated nearly every ground - Australian officials are determined to ensure each venue has predominantly home support.
"We're conversing with them and trying to make the point that we've been the back-bone of the last three Ashes tours," said Burnham.