Canada Visa

Hi Sir/Madam,
I have submitted my application online for Canada Visiting Visa on 12/27/2018
I received a request to submit my passport on 12/31/2018

I am Indian passport holder residing on a visa in Florida, USA.
now as per the instructions I need to submit my passport to Visa Application Centre (VAC) in New York, and the website also says that
With your passport(s), make sure you include:

the passport request letter you received from IRCC; - This I have and I can include.
any applicable visa application centre (VAC) fees, such as passport transmission fees; - How would I know how much I have to pay them? If I need to pay, how much and can I include a check. I already paid 100 CAD at the time of submitting my online application form.
full contact information, including email, phone number, and full return address; - can I just include a white paper and write all these details?
the VAC consent forms (available on their Web site); and - Not sure what's this form is? is it this one? csc.public.s3.amazonaws.com/checklists/US/en/General/Consent_Form.pdf
a pre-paid return courier envelope, if applicable. - do I have to include them an envelope to return my passport? do I also have to mention my return address on this envelope and paste return receipt as well? can I use FedEx?

For the past 4 days these questions are just breaking my head. I tried to call VAC but it's of no use.
all these process without proper information looks very disappointing and pathetic.

could someone please please give me step-by-step instructions as to how to mail my passport to VAC New York and what to include in the envelope.

Millions of Thanks in advance.
Hoping for a reply.

Confused,
Sree.