Furthermore,
Even in the case of amazon.com, some issues persist, let's say that you have a problem with some buy.
Do you have any other way besides email to contact amazon?
Surprise, as far as I know there is no any place in the amazon.com website that guide you to contact a flesh and blood person, which can assist you more effectively when you're in a highly stressed case based on 'several emails ping-pong'.
I got a friend which got a friend, and so on...in that way my friend found something like a "amazon customer service center", based on phone calls. But it should be easier to get it from the web page and not like a back-door Playstation trick.