Thank you for writing to Amazon.com.
The discounts we offer for items on our web site do vary from time to time. I’ve checked your order, and found that we now offer a greater discount on the eVGA NVIDIA e-GeForce FX 5500 256 MB, 128 bit DDR AGP 8X VGA/DVI/TV Video Card (256-A8-N313-LX) than at the time you placed your order.
Since this item was shipped so recently, I have requested a refund of $16.15 to your credit card. This amount reflects the difference between the price you were charged and the discounted price. The refund should be processed in the next few days and will appear as a credit on your next billing statement.