故宫：深表歉意

Group 1 - The core issue reported is a pricing error in the ticketing system of the Palace Museum, where full-price tickets were mistakenly listed at 0.02 yuan, and some exhibition tickets were shown as free [1] - The Palace Museum acknowledged the error was due to an upgrade issue in their ticketing app, which affected ticket types and prices from July 22 to July 28 [1] - The museum has committed to contacting affected customers to rectify the ticket orders and ensure visitor rights are protected, expressing apologies for the inconvenience caused [1]