Have already done it. Raised the web-form. Got a reply that they have received my documents and they're processing it currentlyI suggest you take a copy of the completed status medical which the hospital will provide you 4-5 days after your medical has completed and in that it is written that "the medical record is forwarded to IRCC on so and so date ".
I have also taken that record and it will be helpful as you can show this to the CBSA officers along with the concerned webform raised.