I want to add someone to my booking and ensure they're seated with me
For ticketed events, you will need to purchase the additional ticket/s. To make sure your party will be seated together, you will need to speak to the event organisers directly so they can arrange it for you. Their email address can be found on your ticket and confirmation email.
If this relates to a table or area booking at a venue then please contact the venue directly by phone or email. This will go straight through to the reservations team who can assist with your request.