以下是我收到的PDF中的instruction部分的内容，如果点击embassy or consult的hyperlink，我选多伦多，可以看到的页面是

https://ca.usembassy.gov/embassy-consulates/toronto/ 的内容。没有任何邮递和付费的信息。

如果选visa tab,可以看到Nonimmigrant Visas的选项。但是点击Click here to start your non-immigrant visa application 以后，只能看到：https://ais.usvisa-info.com/en-ca/niv 里面的内容。

在：https://travel.state.gov/content/travel/en/us-visas/tourism-visit/visitor.html 这个网页可以看到中国公民需要支付的费用，可就是没看到支付的链接和选项。

能否告诉我到底哪里可以付费，还有多伦多邮递需要递交拿一些材料，投递到哪里么？

以下是信件具体内容，具体时间给隐去了，我是没几天前刚submit的。

Note: Electronically submitting your DS-160 online application is the FIRST STEP in the visa
application process. The next step is to review the internet page of the embassy or consulate
where you plan to apply for your visa. Most visa applicants will need to schedule a visa
interview, though some applicants may qualify for visa renewal. The embassy or consulate
information may include specific local instructions about scheduling interviews, submitting your
visa application, and other frequently asked questions.
YOU MUST BRING the confirmation page and the following document(s) with you at all steps
during the application process:
Passport
You may also provide any additional documents you feel will support your case.

Instructions
YOU MUST SUBMIT the confirmation page with a clear and legible barcode at the time of your
interview. If you do not have access to a printer at this time, select the option to email your
confirmation page to an email address. You may print or email your application for your own
records. YOU DO NOT need to submit the application at the time of the interview.
Please note that you will be required to provide proof that you have paid the visa application fee and any other fees associated with your application. There may be other fees associated with the visa application process. Please check your country's Reciprocity Schedule for any other fees you may owe.
If you have further questions, or to find out how to contact the Consular Post, please go to
https://ca.usembassy.gov/visas/ or http://travel.state.gov.
NOTE: Unless exempt from an interview, you will be required to sign your application by
providing a biometric signature, i.e. your fingerprint before a consular officer. By providing this
biometric signature you are certifying under penalty of perjury that you have read and
understood the questions in your nonimmigrant visa application and that all statements that
appear in your nonimmigrant visa application have been made by you and are true and
complete to the best of your knowledge and belief. Furthermore at the time of your interview,
you will be required to certify under penalty of perjury that all statements in your application and those made during your interview are true and compete to the best of your knowledge and
belief.
You electronically signed your application on Date-Month-2022 hh:MM:ss (GMT-05:00). You were required to electronically sign your application yourself, unless otherwise exempt by regulation, even if the application was prepared by someone other than yourself. Your electronic signature certifies that you have read and understood the questions in this application and that your answers are true and correct to the best of your knowledge and belief. The submission of an application containing any false or misleading statements may result in the permanent refusal of a visa or the denial of entry into the United States. All declarations made in this application are unsworn declarations made under penalty of perjury. (28 U.S.C. 1746).
You certified that you understand that you are required to submit your visa to the United States
Immigration Officer at the port where you apply to enter the United States, and that possession
of the visa does not entitle you to enter the United States if, upon your arrival, you are found to
be inadmissible under U.S. immigration laws. You certified that you understand that any willfully
false or misleading statement or willful concealment of a material fact made by you within the
application may subject you to permanent exclusion from the United States and, if you are
admitted to the United States, may subject you to criminal prosecution and/or deportation.

The information that you have provided in your application and other information submitted with your application may be accessible to other government agencies having statutory or other lawful authority to use such information, including for law enforcement and immigration law enforcement purposes. If fingerprints are collected as part of your application process, they may be used for the purpose of comparing them to other fingerprints in the FBI’s Next Generation Identification (NGI) fingerprint system or its successor systems (including civil, criminal, and latent fingerprint repositories). The photograph that you provide with your application may be used for employment verification or other U.S. law purposes.
This site is managed by the Bureau of Consular Affairs, U.S. Department of State. External
links to other Internet sites should not be construed as an endorsement of the views contained
therein.