If your booking asks you to assign tickets, add the details for the people who will use them. The buyer and the ticket holders can be different people.
Ask the organiser before giving an assigned ticket to someone else. Assigning an unused ticket to a guest is a different step from changing the holder of an already assigned ticket.
Check the extras listed in your booking and the organiser's collection instructions before arriving. An extra may have a different collection place or time from event entry.
Open your existing support request to read updates and add information. Keeping the conversation together helps the team see what has already happened.