Wait a minute I need to check with DOD. I am on hold with DOD support staff menber Rajeesh right now.
Eventually Rajeesh will ask you for your credit card number. He'll say, "please verify to me your credit card number." If you ask him why he needs it, Rajeesh will say it's for file security purposes.
Don't do it! Instead, I suggest you put him on hold, then go take a nap.