how long does it takes for KPMG and PwC to call for interview after online application

I have applied to 4 KPMG roles under their experience hire. 2 of these roles I applied to 2 months ago, 1 role I applied to 3 weeks ago and the last role was less than a week ago. My application status on their website just says application received.

I have also applied to PwC for 2 roles with the same deadlines. I got an email rejection for one of the roles after the application closed but haven't received any news from the second role. My application status on their website says not selected for the first role (which I received the rejection email for) and application received for the second role. 

Please, can someone with knowledge of the recruitment process for these company provide some input on the situation?

thanks