You can ask the Federal Court of Canada to review the decision related to your application. To do so, a lawyer must apply for judicial review on your behalf.
See also My application for an eTA was refused. Can I still travel to Canada?
You can ask the Federal Court of Canada to review the decision related to your application. To do so, a lawyer must apply for judicial review on your behalf.
See also My application for an eTA was refused. Can I still travel to Canada?