My CoPR and PRV are no longer valid because I was unable to travel before the expiration date due to the pandemic. I'm in a relatively better position to move now, so I want to write to IRCC and tell them that I want to leave by the end of November. However, I need to know the time period for which the extension will be valid (for example, will they ask me to fly between the end of November and February? Or will be six months from November?) in case I am unable to fly by November because of some problem associated with the pandemic or lack of flights etc. by that point? Any advice from those who have received an extension would be greatly appreciated