Or better yet, don't. One has no reason to take the Better Business Bureau seriously. There was no reason 30 years ago when I, as a business owner, signed up for it, no reason now. "Ooooh, you'll report me to the BBB, those three senior citizens that actually look at that might not do business with me!"
Plus, I looked up Amazon: A-. What was I supposed to see here?
I mean, if a company doesn't take the BBB seriously why would they take you seriously?
I think Amazon typically has a good reputation for consumers. You'd have better luck looking up Comcast [1] and if you compare that page to Amazon's you'll certainly understand that you may encounter some difficulties and perhaps choose a different provider (lol) for your service.
Plus, I looked up Amazon: A-. What was I supposed to see here?