he would be either paying to ship the snake back that you did not ask for, and send you the snake that YOU PAID FOR, with no additional cost to you....or letting you keep the snake he sent you, and still sending you the snake that YOU PAID FOR, with no additional costs. if it were my mistake, as a breeder...that is how I would handle it. I would ship you the correct animal, and let you keep the animal I already sent you...good business and customer service will always pay off. if I screw up, then I do WHAT EVER IT TAKES to make my customer happy and get them the animal they wanted....it is a breeders RESPONSIBILITY to offer their customers absolute 100% healthy animals, and absolute 100% great customer service.