[mothered]

I'm after a keyboard, mouse, and USB hub. 

If you want to SE the lot In one hit, obviously DNA It.

In terms of SEing them Individually, there are many suitable methods for either or all, such as the EB/missing Item, boxing, wrong Item received, (package compatibility) the sealed box, disposed of the faulty Item and the list goes on.

I've just been contacting the support of various companies, but I haven't attempted the traditional ones like Logitech.

Why not SE the most vulnerable, namely Amazon?