jb hifi pre orders help

[bwatt99]

First question is silly but when you pre order with jb hifi do they take money right away or when its out?
When you pre order something online not out yet, is it shipped before its due out or do you have to wait days after its out to arrive meaning you could go to store and buy there quicker.
Can an item thats showing online for pre order be ordered in store instead and be picked up in store.
Has anyone ordered something from store on pre order and been let down and never got it and then found no longer available online to order?

Im trying to get my head around if best doing a pre order online or in store,showing as pre order online now so am thinking or hoping it can also be ordered in store also.