It sure looks like you guys are crooks. This product:
is described in the listing as "Amazon Fire HD 10 Tablet 2019, 9th generation" but it plainly isn't the 2019, 9th generation model. The specifications are at least a generation behind the genuine Amazon product that can be found here:
The real 9th generation Fire has a 2.0GHz octo-core processor, a 1920 x 1200, 224 ppi screen and 12 hours of battery life. What you're selling is nowhere near those specs.