No, unfortunately we cannot change an order once it has been placed. It is imperative that you double check everything before you click "pay." Because we are committed to rapid shipment, the handoff between our ordering system and our warehouse system is very quick about; 30 seconds after placement. After that occurs, our support staff are unable to change the order. If you ordered something that you did not want, simply write "return to sender" and ship it back. You will be refunded as soon as we receive and process your return. Regarding Affiliate kits: If you ordered multiple kits, we are unable to process a return until we receive the kit back in it entirety.