Just wanted to query this. I am of the opinion that as I have heard nothing then I have been unsuccessful and that the lack of response is due to the volume of applications so this may or not happen at all.
When I applied in 2007 I waited nearly 1 month from application date to being offered a stage 1 interview, another month to find out I had a sim ride and then 3 weeks to be offered a job. I'm told you'll find out much more quickly that they aren't interested.