Fuel at Canberra
There has never been any sign on the bowser at Canberra related to a credit card 'hold' of $1000 (or any other amount), and
The credit card function is advertised on the pump as American Express, Visa or Mastercard.............
The American Express option has never worked and the Visa/MC option works spasmodically at best.
Yes, those with an AeroRefuellers card can usually get the pump to work OK.
Not ideal but you do not have a choice!!!