Seller's Note regarding Smartpac Shipping:

SmartPac is a doorstep delivery service provided by Singpost to any address in Singapore, delivered the next working day. If no one is available to receive the package during the first delivery attempt to doorstep, the postman signs off the Delivery Note as proof of delivery and places Smartpac into recipient's letterbox. If the letterbox is full/too small, the postman will issue a delivery advice. You can track your Smartpac delivery at www.singpost.com.