I live in the US and I stopped buying any anime whatsoever from Amazon US years ago, because this is pretty much par for the course for them. I don't know if I've ever received a pristine, undamaged anime from them. They care absolutely nothing about packing stuff safely, just throw it into a bag or empty box with zero padding and ship it out as cheaply and quickly as possible, and deal with any damage claims later. Sure it's easy to get a replacement through them, but that one usually arrives even more damaged than the original. For me Amazon US simply does not exist as an anime retailer option.