I have received my file number for PR Visa Processing. In the letter it has been mentioned that I should link my file number online within seven calendar days. Is it mandatory to do the process. That can only be done by my husband as he is the principal applicant. He is out of town for 10 days and I cant reach him. Can you please let me know, if I didn't link the application is the process going to make delay and it is compulsory to link the file number online