Hiya
Yes, if you are travelling UC and have a guest also travelling VS on the same day you can bring them into the CH as a guest.
If you mention this at check-in they usually write '+1' on your invite, but failing that it shouldnt be a problem if you just turn up at the CH with your guest as they *should* all know the rules and sign your guest in under your details.
Be prepared that your guest may get hooked and want to travel with you all the time
