Passport Change for dependent

[expressTarun]

Hi All,

I submitted a web form for change in passport for my 1 YO dependent son as old passport got damaged and thus cancelled. Today I got an email from IRCC regarding further details required to process the web form. Can someone please help me in framing the right answers to all the information requested.

In order to better assist you, we invite you to resubmit your request by filling out the IRCC Web form and include the following information:

• Surname and complete given name (including middle name, if applicable) - exactly as they appear on the passport or identity document,
• Date of birth (YYYY-MM-DD),
• Client ID Number, UCI or Application Number,
• Country of birth,
• Type of application,
• Date on which the application was submitted or received,
• Mailing method (courier, Canada Post (registered or regular mail), etc.),
  • company used,
  • confirmation no.,
• Complete address (including the postal code and the unit number) where the application was sent,
• Receipt number,
• Current address,
• Telephone number(s),
• Email address, and
• All documents submitted with your previous request.

If you are contacting us on behalf of someone else:

• Please make sure to enter their information under the Applicant Information section and your information under the Enquirer Information section, and
  • if you are not an authorized representative or designated individual, please also include the following information in the Your enquiry box of the Web form:
    • your surname and complete given name (including middle name, if applicable),
    • your date of birth (YYYY-MM-DD), and
    • your country of birth.
• If applicable, provide a Use of a Representative (IMM 5476) form, a Release of Information to an Individual (IMM 5475) form or a Power of Attorney in order to be authorized to receive the requested information.

We will gladly reply to your enquiry following reception of the above information.

Background:

I am Sponsor and I've already received SA. Webform I submitted last week was done with all the details about Dependent son. Explanation letter from PA was also submitted.
my questions:

1. For the above requested detail, I've to respond for Dependent information(eg. UCI , DOB, Name Country of Birth) or sponsor information or Primary Applicant information?
2. It seems like they are not able to track my application with information I provided in previous web form as it had only Dependent information. I included file number in the form as well. What can be added to help them track my information.
3. Do I need to attach representative form as well for my dependent son?