Not all of those have "Ships from and sold by Amazon.com" below the shipping timeframe line. It changes depending on inventory stock. The first monitor in the "plus" list says "Ships from and sold by computersale". Some third party sellers can register a device's sale with Dell.
The invoice on my order history says Dell was the seller, and I specifically remember that the label on the unopened box showed that it was shipped directly from Dell’s warehouse.
I went through this like 100 ways when it happened. I bought the monitor from Dell. They shipped it from their hands straight to mine. And when it broke, they refused to make good on it.
