Should you choose the option to have a signature required for the delivery, the delivery provider will make 3 attempts to deliver your package. After the third attempt the delivery provider will then send the package back to the warehouse. You will then be held responsible for the initial shipping charges plus the return shipping. Please note that once you request to have your delivery require a signature, we won't be able to change that request. If you do miss the first attempt of your delivery, you may contact the delivery provider to make arrangements to have your items delivered at a specific time or to pick up your item at deliver provider's warehouse.