The 15 business days timeline we plaster all over our site is how long it takes us to make and ship out your order. It's then down to AusPost to get it to you in good time.
As a general guide we normally see the shipping times below. Add this to the 15 business days and you'll have a fair estimate of when you new gear will arrive.
Standard Post
Metro - up to 2-6 business days
Country - 4-8 business days
Far (you should know if this is you by now) - Up to 14 business days
Express Post
Usually overnight, but can be 5 business days to non-metro locations or during peak periods.
Please note that Express Post does not make your order get produced quicker, it just means it will ship with a quicker service after the 15 business day turn around.