Why can’t I buy a mug or cd before the show? Toni 17 May 2022 13:24 Updated Follow Sometimes we’re not allowed to sell certain things before a show for safety reasons. Related articles Why is the merchandise so expensive? Can I bring a portable smartphone charger? Can I use the flash on my camera? Are there merchandise outlets in The O2? Can I buy merchandise after the show? Comments 0 comments Article is closed for comments.