Amazon is a dick
The lack of response etc over problems you have encountered might be that the employees simply don't care about the company they work for. Given Amazon's well documented history over antagonism towards workers, health and safety etc etc etc, is it surprising?
We should all take note and simply stop using them as much as possible.
I've used them once in 2020 and am actively trying to avoid Bezos's store if at all possible. I just get a bad taste in my mouth everytime an Amazon page appears in my search results.