OK, if I have offered to send you something in the mail I need an address to send it to. I doesn't have to be your home address! It can be your friend's office, your local post office, or the hollow tree by the old barn on miller road. But I need something.
Consider this an invitation to send that information via DM. DMs for other reasons may or may not be acceptable depending on the situation but in all honesty that hasn't been much of an issue so I'm not too worried about it right now
(if you want)