NO. The "mailbox" is not the issue. If they have "mail" or courier deliveries, he has an address. It may not be what you're used to, but they have something that works. My road doesn't have a name. My address is Red Gate yellow house, small area name, district, town, province, country, postal code. It's an address. I get deliveries here often. You already used the foreign address on the I-130, RIGHT?