Shipping to another address

Hello,

If I order one of my products and send them to another address than my own (f.e. a customer), who gets the documents? (price etc.)

I would like to give my customers the opportunity to order a custom made design through my website. (order form) I will send them my invoice and I will do the order at Spreadshirt. But I want it shipped directly to customer without them seeing the price I am paying Spreadshirt.

Any comments on this one?

Kind regards, AJ