Please note that IRCC will only issue written authorization to an applicant who holds a valid Canadian travel document (i.e. electronic travel authorization [eTA] or visitor visa). Based on our review of your enquiry and the information in our system, we can confirm that your application for a visitor visa is in our processing queue. However, since you do not yet have a valid Canadian travel document, we are unable to process your request for an exemption to the Canadian travel restrictions. As such, your request will not be processed.
this is what they replied to me.