Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Total Rip Off! Google them first.

After buying several Mack warranties, I finally had a Nikon fail. They said there was physical abuse. I asked them exactly what they were talking about, as the camera had always been in a foam case, and was perfect, just locked up when turned on. They did not respond. After several unanswered phone calls and letters, I told them to send it back. They never did.They are weasels!Search Google for "Mack Warranty" and get other opinions before you buy. Way too many people have been ripped off by them. I expect sleazy dealers to sell them, but cannot understand why seemingly reputable stores continue to sell them.