When you place an order with RememberTheFilter.com you are charged at the time of purchase. The main reason for this is most of our filters are custom made after an order is placed and some filters have longer lead times. As an online retailer the credit card authorization that takes place when you checkout is only valid for 7 days. After 7 days we would no longer be able to collect payment - thus not send your filters. If you shop with retailers that do charge after longer periods they most likely save credit card information - we don't save credit card information.
If at anytime you would like a refund or to make an inquiry regarding your order status please let us know. Our customer service representatives will be happy to help.