My letter is quite similar to yours which i sent on 25th July but i haven't received approval or any reply yet! Did they reply you within 5 days of your request?
First of all you need to check whether you're exempt worker or not.
This page will help you: https://www.canada.ca/en/immigration-refugees-citizenship/services/coronavirus-covid19/foreign-workers.html
(All this pages are updated regularly. You can check last modified date at the end of the...
Written authorization may be issued to facilitate family unity at the onset and allow for the whole family to travel together and establish residence in Canada. There is no requirement for the head of family (ex. a worker or student) to come to Canada first and the rest of the family travel at a...
A friend didn't get approval letter ... You've to submit "detailed reason for travel" and they'll only issue authorization letter if find your travel essential.