1. Contact the bank: You can directly contact the Bank of Japan to find out the reasons for remittance failure and consult the solution. The bank will provide corresponding help and support.

2. Check the account information: the remittance failed because the account information provided by the payee was wrong or incomplete, or because of the banking system failure.

3. Change the remittance method: overseas remittance has never been successful. You can change the remittance method, such as using remittance services of other banks, using Alipay and PayPal third-party payment platforms for remittance.

4. Consult a professional institution: If you are unfamiliar with overseas remittance or encounter complicated problems, you can consult a professional remittance service institution or lawyer for professional guidance.