Reflect the problem to the customer service of the Postal Savings Bank and complain to the local banking regulatory bureau.

1. Report the problem to the customer service of the Postal Savings Bank: You can call the customer service hotline of the Postal Savings Bank to explain your problem to the customer service staff and ask for handling.

2. Complain to the local banking regulatory bureau: If you are not satisfied with the solution of the Postal Savings Bank, you can complain to the local banking regulatory bureau, because the Postal Savings Bank is a large state-owned commercial bank and the CBRC is the institution that supervises commercial banks.