Dear Viet,

Thank you for writing to Amazon.com. I apologize for the delay in responding to your e-mail message. Please be assured that all of us here are working very hard to provide a thorough, personal answer to each of our customers as quickly as possible.

I would first like to send along my most sincere apology for any confusion or frustration caused by our dynamic price test. Dynamic testing of a customer base is a common practice among both brick & mortar and internet companies. It allows for a periodic refreshment of customer feedback
generated by price, image, warranties, shipping, etc.

During a dynamic price test period, it's likely that a customer may pay a lower price for an item than another customer; It is just as likely that the same customer receives a deeper discount on a different item. Please note that these are simply tests and run for a limited time.

Rest assured that I have passed your message on to the appropriate department in our company for consideration. Customer feedback like yours is very important in helping us continue to improve the selection and service we provide, we appreciate your input.

Your business is important to us, and we would like to offer you a $10.00 gift certificate, for use toward your next Amazon.com order. When you redeem your gift certificate, please be sure to use the shopping cart rather than ordering via 1-Click.

You will find all of the details below. Simply print out the gift certificate or save the message on your hard drive for future reference.

I hope that you will honor us with another opportunity to prove the quality of our service to you in the future. Please let us know if you have any further questions, and thank you again for shopping at Amazon.com.

Best regards,

Galen Sather
Amazon.com
Earth's Biggest Selection http://www.amazon.com
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And then I used the 10 bux, but i'm still bitter.

The value of your bitterness is less than $10 apparently.