*The customer service reps have to answer a huge volume of cases and they really don't take time to read the email
*It's ingrained into the customer service reps to follow policy to a T. So if it was signed for, deny.
*They're using some sort of automated system that shows whether something was signed for. If 'yes', deny.
I still use Amazon because of the convenience and because the vast majority of the time I never have to deal with their customer service, but in the rare instances I do I've noticed that over the past few years Amazon has become very Google-like in terms of putting everything behind systems that are either automated or may as well be (strict script-following offshore customer service).
There used to be useful links ("Where's My Stuff?") directly attached to your order for inquiring about status if things are late, etc, with just a click or two... this all kinda still exists but has been buried so far up into the user interface that there's no way it isn't intentional obfuscation to try to limit any kind of meaningful interaction between the customer and anyone alive within Amazon, with a further barrier between the front-line alive people who are clearly all offshored and anyone in the US.
I once bought a projector that stopped working after 6 months. I tried all the "channels" directly available in the UI (like contact the seller) and got no answer.
When I thought there was nothing else to do, a friend told me: "The first thing you need to do in Amazon, is getting in touch with a real human". And he showed me how, which involved a complicated series of UI steps. Once I talked to a real person I got my money back in a week.
So, yes, I definitely agree. Amazon is making it increasingly difficult to talk to real humans. If I can't get into a phone call, or at least a chat, I don't bother anymore.
Personally, I would never buy anything on Amazon with a price tag more than a couple hundred dollars. They can't even confirm what carrier they will ship through; I'm not about to trust them for high-value items.
I think buying from Amazon itself is relatively OK, I'd have hard time believing Amazon would run any scams. But third party sellers, given no customer service beyond robots and robot-like script readers... yep, better to steer clear.
If it's the same item, then it's already not a scam. At least not that one. The whole scam is that there is no item at all. And if Amazon doesn't check stock before mixing (which I have hard time believing) then you'd get much better luck getting money back from Amazon branded sale than from third-party one, IMO.
I've been decrying Amazon's usability for years. Such an unintutive mess of menus and sub-systems. Such a poor customer experience for anything other than simple "click and buy" usage.
I blame their extreme position ahead of other emarketers. They have very little reason to be nice and helpful. People will throw money at them regardless.