The sleep aboard is done over the phone. Also have to tell them that you have your Captain's Discount if you have bareboat chartered with them before. It's another 6 to 7 hundred off. The Promo code is for if you have a discount certificate that you would have got for say compensation for something wrong with the boat. This certificate will have a promo code on it or can talk with the agent to get the discount. If you did not have anything wrong or a certificate from the Moorings or have not chartered with them before there will be no promo code.