Hello, are you using a coin slide or a card reader in the unit? this is the manual to your unit as well http://www.speedqueen.com/tech_pdf/production/512680.pdf for a coin slide you would insert the blockers to the setting of the price that you chose if none were provided you would need to order them depending on the make of the coin slide they are not that hard to find and many places do carry them the card reader is discussed further in your manual if your trying to set the price on the digital display it discusses this as well on page 41 which discusses you cycling through the menu till you get to the price option and there is where you would set the price on the digital i await your reply if you have any further questions Thanks Rick