I see the same sentiments all over regarding already submitted documentation and the embassies get back to you asking for exactly the documentation you have already sent.

In particular for those who sent bigger packages of documentation in the case of applying as freelancer/working remotely.

It seems that very often the staff looking at these documents only fast glance and then very often ask for is already submitted even if you have a cover letter specifying each item included.

What's your experience on the topic?