In the very rare circumstance that your model is missing certain parts, please reach out to us on info@theblockzone.com or by replying to your order confirmation email. In this email, please include pictures of the missing parts from the instruction booklet and we will send replacement parts out to you as soon as we can. We work with partners worldwide such as BrickLink and BrickOwl to find the fastest method possible to have these replacements delivered so that you can continue your build. In most cases you should have your replacements within 72h your initial email.