Earlier quoted context omitted.
Sounds like a great battle for Dell and Amazon to have. It shouldn’t be a burden to consumers regardless of whether Amazon or Dell screwed up.
If it wasn't purchased from an authorized Dell retailer then Dell really has nothing to do with it. With the way 3rd party Amazon Marketplace sales works, who knows what happened here.
The monitor is within the warranty period and failed. Dell didn't deal with their warranty issue in an honest and direct way. They suck. No other details matter. The end.