Edit: Postal Orders !?
When Moses parted the sea and wanted to go shopping at the Bottom of the Sea Mall, he payed by credit card.
When neolithic man wanted to pay for their TV licences, they used a cheque.
When pre-Earth sub-atomic particles wanted to exchange their money at the airport they paid by debit card.
Back on topic - Bugz - you could always phone up your local office and check with them if you're not sure.