amazon
I found some sellers that betray their customers.
I ordered a router at each of them: TP-Link TL-WR841ND but they are all sending another revision of the same router instead, that costs a few dollars less new: TP-Link TL-WR841N
Is there a way to contact Amazon to tell them this is going wrong?
There is no way to see all of the individual feedback on the Seller. If you want to see individual reviews you will have to scroll or page through all of the reviews on the right hand side of their Seller page.
You can however see a summary of Seller feedback if you look at the Feedback History:
It sits just under the individual reviews
You can't directly email the seller because Amazon wants messages stored on their system for arbitration or dispute resolution.
So, you have to contact your seller through Amazon.
Go to "your account" > "your orders". There should be a button that says "Contact Seller".
Another way is to click on the "order details" or order number. Then find and click on the seller's name. It should be a hyperlink that opens to web form.
Lastly, you can go to the seller's storefront. Then on their "about" page, there is a "Contact the seller" link under "Further Information" on the bottom right.
Best Answer
You can report Sellers who violate Amazons TOS at the following link:
http://www.amazon.com/gp/help/reports/contact-us