What's on How to Book Tickets How to Book Tickets Christmas Services 2020 Tickets for all Christmas services is online only, through each individual service's respective event page. Book Tickets: Online | Through the event's direct page. In person | Visit the Box Office located in the Cathedral Shop. Telephone | Call 01727 890290. Tickets and/or programmes will also be available for all events at the door on the night, unless previously sold out. View Cathedral Box Office Terms and Conditions.