I travelled to Canada on work permit last year but my son could not travel with me due to Covid. My work permit and visa expire on 17 Feb .Now I have applied for work permit renewal. It is still in process. My son will be travelling to Canada on 19 January but his visa is also expiring on 17 Feb. Will I be able to apply for my sons visa extension after he arrives in Canada even if my work permit renewal is in progress.