Hi Alibaba,
The first request for info was in Sep 2017, second was in Jan 2018.
First one asking for info like bank statements, payslips, tax return and etc which are pretty standard (which we submitted when we first lodged but we submitted again with more anyway). Second one asking for work related stuff to prove we actually work there.
Neither my employer nor myself has received any phone calls and just my wife and myself in the application.
Thanks!