How do I purchase group tickets for Up At The O2? The O2 06 March 2015 14:20 Updated Follow Please call our team on 0208 463 2689. They’re open from 9am-6pm Monday to Friday. Related articles Contact Numbers for The O2 How do I book group tickets for events at The O2? The O2 Box Office What are “general admission” tickets? How do I know what sort of seats I’ll get? Comments 0 comments Article is closed for comments.