We have an Amazon depot just across the road .. the vast majority of the drivers are self employed and I have yet to meet one who isn't Eastern European. The job they apply for is displayed on 'Indeed'. It really is slave labour if you get involved with their van lease scheme.. Dont be tempted !
goo.gl/YrTA1n
Have yet to meet someone who works for them who loves their job. It's no wonder they dont turn up when expected.
An alternative that seems to work very well, is to select having your parcel delivered to an Amazon locker .. the drivers prefer this to searching for an address in the dark .. in an unfamiliar area.