Everywhere on IRCC you have to use English. It clearly says that if you have any documents in other language one has to submit verified translated copies.
Have you ever changed your name for any purpose and used it on official docs? I am still not getting your point....
For instance if ones...
Sorry for late reply.
Usually (WES for sure) goes for the details you enter while setting up your account.
What do you exactly mean by native language on passport? As far as I know it's usually English on most passports. Passport is the main important document, all the time the name on it is...