According to the "Guiding Opinions of the General Office of the People's Bank of China on the Special Treatment of Overseas Wrong Payment of Counterfeit Money by Banking Financial Institutions" (Yinfa Office [2065 438+03] 14), the crown number of BOC is kept for three natural months.

The above contents are for your reference. Please refer to the actual business regulations.

If in doubt, please consult the online customer service of China Bank or download and use the mobile banking APP of China Bank to handle related business.