One of my friends enjoys repairing his own car because he says mechanics charge too much for simple fixes. He spends hours online comparing prices for parts and reading forums before ordering anything. Recently he bought a replacement part that turned out to be the wrong model once it arrived, which completely ruined his weekend plans. While trying to arrange a return, he started reading
https://partsgeek.pissedconsumer.com/customer-service.html to learn how other customers handled shipping mistakes, refunds, and replacement requests.