iPhone duo Xfinity Mobile deal

I got a trade in value of $1299 for my iPhone 16 pro max for a new iPhone 18 pro max for my wife and I waiting to upgrade and wait for the deal for the iPhone duo and they only give us $1000 of trade in value. Kind of a slap in the face for new and exciting customers. At least give us the same trade in value of $1299. That only makes sense. Of course the deal for the iPhone 18 pro max is no longer available so I am stuck with an older phone and not being able to upgrade.