That is going to be hard to get in touch with him though with no email or phone number.
I'm sure he'll see the item and realize though,if/while moving,and send it to you.Unless it got lost in shipping.
Do you have a tracking number or insurance on the item?
If not,hopefully someone will have some way of contacting him.
I'm sure its just a mistake along the way somewhere,and can be corrected.
And that even if busy now,he'll be back here when he can!Eventually!
So dont lose hope
Edit:Sorry,I see now you did find a email address...Cool!