In the early days of Amazon, I found an ad, 6 cases of liquid hand soap for $X. Happened to be a soap I liked. I placed my order, and captured a screen shot of the ad page and saved to file. What I received was, one case of 6 bottles for $X. I wrote the vendor about it, they pretty much blew me off. I wrote them again, attaching the screen shot (after they had changed the ad to being what they shipped), and cc'd Amazon. When I did not receive the balance of the original order, I wrote a review in Amazon about the vendor's dealing with me, and describing the transaction. Don't know what affect my review and correspondence had on the vendor, but I quit using that soap once my case of 6 was used up.