Description of the disputed issue

There is a controversy, some say that the bank can only withdraw less than 50,000 yuan without an appointment, and some say that it is less than 200,000 yuan. A while ago, when I went to withdraw money, I saw a sign next to the Bank of China ATM, which said that more than 500,000 please make an appointment in advance. I asked the group, and it seems that it is not the same in different places. The book is based on 500,000 for the time being. That's it......