Bests & Worsts Reviews from Amazon

I own a Logitech k350, which I bought a few years ago. Over time the keys began sticking, but besides that, I really liked the product. Last week I ordered a Logitech MK570, which looks EXACTLY like the k350, but of course, it is the latest model. I received the product, unboxed it, and while I was inserting the batteries in the back, much to my surprise, Amazon had shipped me a K350 but had charged me for the MK570. I looked at the box it came in and saw that they had shipped me a K350 in a MK 570 box. I thought it was a fluke. So I called CS, they apologized, and made arrangements for a replacement, which I received today. I unboxed it and low and behold I received another K350 in MK570 packaging. I don't really write a lot of negative reviews, but I can't help but think that in today's profit-minded world and with no conscience or moral compass, that Logitec and Amazon are packing and shipping thousands of surplus K350s in MK570 clothing, at the MK570 price, betting that there is a large percentage of buyers who would never notice the difference because the two models look exactly alike. So this is YOUR warning, BUYER BEWARE!!! Check your product when you receive it to make sure you got what you paid for, cause chances are you didn't.