Had this problem when trying to buy the game at first as well. Called my bank and they saw the charge and 'sent it through' and the email came. I don't know if it is the same, but have your friend check his bank, if he was charged and pending, he might have to call the bank to see if they can 'confirm it' and move it through. If he wasn't charged, I would suggest trying again or buying Crysta from a physical store.