Generally, Banks have no reason to close your account. 1) If my account doesn't meet the minimum balance requirements and banks continue to deduct upto the point where there are no more funds to deduct from the account, the bank will freeze/inactivate the account.
The term bilby is a loan word from the Yuwaalaraay Aboriginal language of northern New South Wales, meaning long-nosed rat. It is known as dalgite in Western Australia, and the nickname pinkie is sometimes used in South Australia. The Wiradjuri of New South Wales also call it bilby.
(Australian): Underpants. Derives from Sydney Rhyming slang, Reg Grundies = Undies, which is a reference to that excellent Australian TV production outfit Reg Grundy, behind such televisual classics as Neighbours, Home and Away, The Sullivans, etc. From The 12th Man Again, wherein commentator Max Tangles.