Dial 95566.

Users call the Bank of China customer service hotline 95566, and according to the voice prompts, first press the "1" button, then press the "1" button to select banking services, and finally press the "0" button to select manual services, so that the user can make a complaint.

In addition, before handling business, choosing manual service will require the user to enter ID card and other relevant information. Please verify the information first.

If you want to complain about an offline business outlet, you can go directly to the lobby of the business outlet and complain to the account manager.

If you are really dissatisfied, you can also complain to the China Banking Regulatory Commission.

Extended information: Bank of China is the note-issuing bank in Hong Kong and Macau. Its business scope covers commercial banking, investment banking, funds, insurance, aviation leasing, etc.

Bank of China is the only bank in China that has been in continuous operation for more than a century. It is also the most internationalized and diversified bank in China.

Its institutions cover mainland China and 61 countries and regions, and its subsidiaries include BOC International, BOC Investment, BOC Funds, BOC Insurance, BOC Aviation, BOC Consumer Finance, BOC Financial Commerce, BOC Hong Kong and other holding financial institutions.

In June 2017, the "BrandZ Top 100 Most Valuable Global Brands 2017" was announced, and Bank of China ranked 94th.

In February 2018, BrandFinance released the list of the top 500 global brands in 2018, and Bank of China ranked 18th.

In December 2018, the 2018 (15th) "World's Top 500 Brands" ranking list exclusively compiled by the World Brand Laboratory was announced in New York, USA. Bank of China ranked 198th.

On July 22, 2019, the Fortune Global 500 list was released, and Bank of China ranked 44th.

In December 2019, Bank of China was selected into the 100 Model Brands at the 2019 China Brand Power Ceremony.

On December 18, 2019, the People's Daily released the China Brand Development Index 100 list, and Bank of China ranked 21st.

In March 2020, it was selected as the 20th among the top 500 most valuable global brands.