Start with the customer and work backwards. Those two things, passion and customer-centricity, will take you an awful long way. – Jeff Bezos
I found out about Refund Please and Price Protectr earlier this year. So far, Refund Please has been doing a much better job than Price Protectr. Three days after I placed an order for a Canon PowerShot SD900 Titanium 10MP Digital Elph from Amazon.com, Refund Please was the first to send me an e-mail when the price dropped by about $10. Then earlier this morning I received e-mails from both Refund Please and Price Protectr confirming that the price for the camera had dropped again. Furthermore, Refund Please sends you a message with very detailed instructions on how to claim your refund from. Either way, as a result of these services I was able to request a refund from Amazon.com, and as always their customer support has just been great in exceeding service levels provided by other stores.