If there is a dispute with the bank, first of all, try to communicate and negotiate with the bank and try to reach a settlement. If negotiation fails, the following measures can be considered:

Complaint: If the problem cannot be solved, you can complain to the customer service department of the bank and explain the problem and your appeal in detail.

Seek professional legal help: If the problem is complicated or involves a large amount of money, you can seek professional legal help, such as consulting a lawyer or asking for help from a consumer protection organization.

Legal action: If the problem cannot be solved through negotiation, you can consider bringing a lawsuit to the court and asking the bank to compensate for the loss.

To sum up:

When there is a dispute with the bank, you should first try to settle it through negotiation. If negotiation fails, you can take measures such as complaining, seeking professional legal help or legal proceedings to safeguard your rights and interests.

Legal basis:

Article 122 of People's Republic of China (PRC) Contract Law stipulates: "If another person obtains improper benefits without legal basis, the person who has suffered losses has the right to ask him to return the improper benefits."

Article 39 of the Law of People's Republic of China (PRC) on the Protection of Consumer Rights and Interests stipulates: "Disputes over consumer rights and interests between consumers and business operators can be resolved through the following channels:

(a) negotiated settlement with the operator;

(2) Requesting consumers' associations or other mediation organizations established according to law to mediate;

(three) to complain to the relevant administrative departments;

(four) according to the arbitration agreement reached with the operator, submit it to an arbitration institution for arbitration;

(5) bring a lawsuit to the people's court. "