MAcbook Screen Issue

I purchased a MacBook Air (Late 2020) from Amazon on September 17th. After a week of use, the screen has lines on it. Before the 30-day return window was up, I brought it to the apple store and contacted your website discussions.Apple.com/ (twice). The Apple Store, would not replace the unit and the staff would not send the unit out to be fixed at no cost. The store claimed “damage” was done to the laptop. An unacceptable response where the laptop was used over a week with normal use, on a desk. This is a defect, not “damage”. Additionally, employee at the Apple Store, said that he could only “swap it out” if we purchased it from Apple directly. This is unacceptable, I purchased this unit from Amazon which is an authorized Apple Retailer. The same policies need to be applied, or why bother having authorized retailers.