Virgin is giving 1GB free per month on new postpaid mobile broadband plans when you bundle an existing $30+ postpaid mobile plan with the mobile broadband plan. Found this bargain when looking on Virgin's Mobile Broadband plans page. Sounds like a pretty good deal as Virgin has some pretty good prices already. You have until 31/01/17 (unless extended) to get the deal, but once you have it, you have it for life, unless you change the phone or broadband plan.
The Fine Print:
Postpaid Mobile Broadband Bundle Data Bonus: available when you’ve got an existing postpaid phone plan and you sign up for a new $30 postpaid mobile broadband plan or higher on the same account. You will > receive a 1GB bonus on top of your standard monthly data allowance (to use in Oz) on the new mobile broadband plan until you cancel or change either that broadband plan or the existing postpaid phone plan. Offer ends 31 January 2017 unless extended.
I think u meant "you have until 31/01/17"…