I have a coupon code field on the bottom of my order form. It works perfectly, there is a php script for it etc. I need two things: one, when you put the coupon, if the coupon is FFFFF and you put fffff (lower case) it does not take it and two: I need to know after the customer has paid, what coupon he used (this is probably the complicated part). Right now I have no way of knowing, I just see the total but I want to have various coupon codes, and I want to track which ones are being used.