Some cards will give you the difference in price of a purchase if you find the product you bought cheaper within a certain period, like 30 or 60 days. (freefrombroke.com)
If someone makes a purchase, then I get a small percentage of the total price of the purchase. (loverlygrey.com)
• Provide customers with information on prices of their purchased items, when requested. (coverlettersandresume.com)