Can the date of Potala Palace tickets be modified?

From October 15th to mid-March next year, the free ticket system will be implemented

If you do not show up on the reserved date, you can refund the ticket and reschedule the admission time.

First of all, I went to the Potala Palace on October 23. Because it is free of charge, it is relatively loose, but it is still necessary to reserve the Potala Palace ticket one day in advance. The date cannot be modified. If you pass the reservation time during the free period, It doesn't matter, because I made an appointment between 10:20 and 10:40, I thought I must be finished, but when I walked to the third official entry into the Potala Palace, I asked the guards and security checks, they were very friendly It is said that special treatment is given during special times, so I am very moved! You can still enter, but you cannot change the date. <br/><br/>Be sure to find a tour guide to explain, otherwise you will not know anything. I originally wanted to use Sanmao APP but many objects are still marked, so it is best to find a tour guide to explain, which is about 50 yuan per person. , Puzzle. If you have a thick skin, you can also rub against the tour guide, but I still think it is best to find someone to write for you. After all, I also tried to rub against the tour guide, but it ended in failure.