Not necessary. The Embassy shall interview you by the phone
Yes, you can.
Yes, it could. Authorized persons need to provide authorized letter, receipt and ID card
Presence at the time of filing is required to all applicants, except for children under 14 years old and the elderly over 75 years old.
The necessary requirements for Canada visa include: having inviters, the applicant should have stable job and how their income is, are they owning houses, lands and other properties, bank capacity, family factors, outbound history…other additional factors.
Generally Canada visa shall take effect based on expiry days of passport
Normally the processing time for Canada visa is from 4 to 6 weeks, except for the cases of humanities and emergences.
The applicant may apply at Canada visa application center in HCMC and Ha Noi.