H4 Visa Payment NEFT for Dependents

Friends, I am tying to make visa payment for my wife and kid. I have my account created with cgifederal site. Only my wife and kid are travelling to India and going for stamping. But when I try to make payment it is asking for 3 persons including me. Since I am the account holder it is considering me also and asking to pay for three people. I tried to create a seperate account for my wife. But when i try to schedule the appointment system says personal details matches with another account and hence can not proceed. Can some one please tell me how to make the payment only for my wife and kid. Thanks in advance.