Email server is currently still having some issues. Will look into this.
Some changes have been made regarding gifting coins/lucky boxes, you are now required to enter a gifting ID instead of the username.
You can find your own gifting ID at http://fgunz.net/account.
Note that the gifting ID changes every page refresh, this is normal, it will work fine when you give your gifting ID to other people.
You don't have to give them your new gifting ID every time.