Not surprising really, Friend of mine used to work in the "refurb" department of amazon, There was nothing refurbished about it, They got brand new items that weren't sold, Smartphones for example, Took them out of their original boxes, Made sure they still worked, Put them in plain cardboard boxes, Call them "refurbished" and then marked the price down.
Amazon does some very shady stuff.
My brother worked there in the Swansea depot. They treat staff so disgustingly poor that I will never give them a penny of mine. I would sooner pay extra elsewhere just out of principle or go without.