Applying B2 visa for my twins

[B1Visitor]

Hi guys,

I am an Indian by nationality and live in India. I have my B2 visa valid for next 4 years. It was issued 6 years ago and now i want to apply for B2 visa for my twins. They are 5 years old. I filled up DS-160 forms separately for each of them and now the website is asking me to register myself on https://cgifederal.secure.force.com/...&country=India
and then fill in details, pay the fees etc.
My questions are:
1. when I register ; should I register with my passport details or I have two create two different profiles for my kids with two different email ids?
2. I want to pay bot of there visa fees together, is there a way to do that?

[B1Visitor]

Hi guys,

I am an Indian by nationality and live in India. I have my B2 visa valid for next 4 years. It was issued 6 years ago and now i want to apply for B2 visa for my twins. They are 5 years old. I filled up DS-160 forms separately for each of them and now the website is asking me to register myself on https://cgifederal.secure.force.com/...&country=India
and then fill in details, pay the fees etc.
My questions are:
1. when I register ; should I register with my passport details or I have two create two different profiles for my kids with two different email ids?
2. I want to pay bot of there visa fees together, is there a way to do that?

So I just moved forward with the application and used my one son's info on the main page and then added my other son as "ADD name". Then moved forward with Visa place, and fees. Now I paid the fees and waiting for the receipt number. Here is my question, when I was adding the details of my other son I spelled his name wrong, Now he is the one that was added as "add name" , what I am afraid is would it affect the Unique ID number that was generated ?

I am panicking please some one reply!!

[pb2au]

Call the ustraveldocs.com number for India and have it sorted out.