Thats not a charge, they dont "charge" you to create an account.
NOW, when you set up your debit card or credit card on your account, they charge 10 bucks to it and then credit it right back to make sure its a working card number.
if it didnt get credited back, well.......
Thats why I said to get acquainted with your FedEx representative.
They'll be able to take care of everything for you.