Maybe this is something to look forward too. When you submitted the order, there was a page that had your confirmation number and everything.
At the bottom it says this:
"Make sure you allow emails from us 'GBAX Orders', as we do a newsletter keeping you upto date, and we may also need to email you about your order."
From context it sounds like they need to email in case of a problem with billing. Notice the use of the word: "may".
Hopefully we can get an official answer on this.