Video Assessment

Just phone them and say that he hasn't got a phone phone or internet connection so it isn't possible for him to have a video assessment. A video assessment would require a web camera and even if you have an internet connection many people don't have a web camera. They are assuming that the person has all of these or will buy a web camera to do a video assessment.

You will need your son's permission to do anything on his behalf but if they try and say do you have an internet connection if you say yes that doesn't mean you have a web camera, if they say you could buy a web camera for him to have a video assessment just say no you are not paying for a web camera that might be only used once every few years, even if you can afford a web camera just tell them you're not purchasing one just for a video assessment.