Which part exactly does it say document invalid?
Did you have your own myCIC account when you applied or did agent do everything? In any event check the account for any letter of cancellation.
You can also try calling the Canadian IRCC number there is a roundabout way of doing it so google around.
Did you have your own myCIC account when you applied or did agent do everything? In any event check the account for any letter of cancellation.
You can also try calling the Canadian IRCC number there is a roundabout way of doing it so google around.