I've had occasion to need to return something to Amazon. It was defective, so the vendor should have been willing to receive it. HUGE hassle - I almost blew it off because it was only $15 - but then I got stubborn...
Anyway, it became obvious through our many emails that the vendor either was not from the U.S. or never passed high school because their English was atrocious. Many of the malapropisms hinted of an overseas operation. It wasn't until I threatened to put a bad review on their Amazon webpage and contact Amazon customer service directly that they agreed to issue a refund. We'll see if it's the whole refund (they wanted to give me a partial refund even though I returned the item.)
I just thought this was weird. I must be naive because I figured "Amazon" = "U.S." Guess I need to think globally.