The RUSH fee is a fee that you pay us to push your order to the front of the line. This fee covers our costs including in some cases the overtime we have to pay to get your order out ASAP. The shipping fee is the fee you pay to the shipper to ensure delivery by the date you need your buttons. We do not have any control of what the shipper charges. The rates on the site are pulled directly from UPS and the USPS.