I originally applied for a study permit for the Jan 2021 intake and later I deferred my intake to September 2021. I got a request letter from IRCC asking me to upload LOA and in response to that request letter i uploaded my new LOA (September 2021) and after few days I got my study permit application approved. Hence, do I need to send my new LOA(September 2021 intake) to IRCC through webform now?.