Can I buy merchandise with cash? Toni 09 June 2022 14:38 Updated Follow The O2 is now a cashless venue, so payment for merchandise needs to be paid for by card. Related articles Can I still use cash in the restaurants and bars outside the arena? Do I have an allocated standing space? Are there any other ways to pay? Why is The O2 arena going cashless? Do I need an NHS Covid Pass? Comments 0 comments Article is closed for comments.