I'm not from QLD but same question applies to all I guess... when I wanted to get a copy of my 34 keys, all of the places I went to could not find a blank key that would match the Nissan one.
I ended up getting the Nismo blank key to make a copy - the other set no resides about 45kms from my house so keys are never left at home alone with the car.
My question is, where would these guys "copying" the keys get their blanks from? Surely they'd have to contact Nissan or some other distributor (can't imagine there'd be too many) if they were going to pull a dodgy?