Just use your address, some companies allow you to put a map location, failing that have a chat with your nearest shop, that you use, they will often help you out, I have to use my wife's shop if I need anything delivered by the Useless Thai post, that includes EMS stuff, I am lucky if I get post once every 3 Months. But all the delivery companies manage to find my house, Although I do use my wife's phone number as a contact, in case they ring to find it.