What I am thinking he is trying so say when he goes to https://preorder.na.finalfantasyxiv.com/na to add his code it will ask him to Redeem code and when he goes to redeem it says redeem but when he refreshes the page it no longer there My boy this is a data packet issue refresh again if says nothing and u look at the thing says you are not login. this is what you should do.

Login done bam magic u see code now lol