Morts
I am sorry that we missed your post but Moderators are only online 2-3.30pm and 8-9.30pm.
Yes, you need to attend these meetings unless you can show that there are medical reasons why you cannot. Universal Credit requires the claimant to authenticate who they are and this normally requires the claimant to attend at their local JC+ office with appropriate identification.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems