Broken parts no exchange

Not even one star worthy. They sell broken parts. And don't dare calling them. They tell you strate we don't exchange because we don't know if you installed it wrong. I'm a technician for more than 20 years. Not even a sorry we will see what we can do. Just straight you installed it wrong. A sales lady telling a technician you must have installed it wrong we don't exange. Unacceptable