Yes, I found I'm using the wrong word, actually what I tried to do is link to my IRCC online account, but it cannot find my application there.
here should be the correct place, right?
Link an existing application to this account
You can link an application to your account if you:
lost your GCKey or Securekey and created a new account,
have submitted an application on paper, and want to check the application status and receive messages about your application through this account,
need to upload a document to support an application for an Electronic Travel Authorization (eTA).
Before your application is linked to your account, we will ask you questions about the application you submitted to make sure it is the correct application.
By linking an application to this account, you are agreeing to have all correspondence sent to this account. This means that correspondence will no longer be sent to you by mail. This begins on the day that you link the account and applies to all future correspondence.
Tell us about the application
Answer the following questions exactly as you did on the application form. If the information matches your application, we will link the application to this account.
If you:
left a field blank on your application form, leave it blank in the fields below.
have updated any information about your application after you first submitted it, enter the most recent information.
What program did you apply for?
Category (required)
Sub-category (required)