@Davie Smooth_Operator - the url linked to the title of this event in the calendar (effectively the only way to access this thread if not access via last post or not when somebody tagged opens a notification) contains this ?do=edit suffix (most likely left by mistake by admin/thread owner), so only moderators can access this thread from calendar (or you need to know to delete this suffix from the address bar).
the technical vehicle certificate is no longer available from the context of a non-owner. You can only pull it when you sign in into RTA and the car is under your name... they changed that some time ago. If you cant figure the owner or the car is owned by a dealer who isn't cooperating, you won't be able to get this data until the car is transferred to you. Which kinda defeats the purpose of this service even being there...